diff --git a/.gitignore b/.gitignore
index ddbbf9a0..a7e4dd8a 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,4 +1,5 @@
 *.pyc
 test.py
 pydruid/bard.py
-.idea/
\ No newline at end of file
+.DS_store
+.idea/
diff --git a/README.md b/README.md
new file mode 100644
index 00000000..d4672ec3
--- /dev/null
+++ b/README.md
@@ -0,0 +1,128 @@
+#pydruid
+pydruid exposes a simple API to create, execute, and analyze [Druid](http://druid.io/) queries. pydruid can parse query results into [Pandas](http://pandas.pydata.org/) DataFrame objects for subsequent data analysis -- this offers a tight integration between [Druid](http://druid.io/), the [SciPy](http://www.scipy.org/stackspec.html) stack (for scientific computing) and [scikit-learn](http://scikit-learn.org/stable/) (for machine learning). Additionally, pydruid can export query results into TSV or JSON for further processing with your favorite tool, e.g., R, Julia, Matlab, Excel.
+
+#examples
+
+The following exampes show how to execute and analyze the results of three types of queries: timeseries, topN, and groupby. We will use these queries to ask simple questions about twitter's public data set.
+
+## timeseries 
+
+What was the average tweet length, per day, surrounding the 2014 Sochi olympics?
+
+```python
+from pydruid.client import *
+from pylab import plt
+
+query = PyDruid(bard_url_goes_here, 'druid/v2')
+
+ts = query.timeseries(
+    datasource='twitterstream',
+    granularity='day',
+    intervals='2014-02-02/p4w',
+    aggregations={'length': doublesum('tweet_length'), 'count': doublesum('count')},
+    post_aggregations={'avg_tweet_length': (Field('length') / Field('count'))},
+    filter=Dimension('first_hashtag') == 'sochi2014'
+)
+df = query.export_pandas()
+df['timestamp'] = df['timestamp'].map(lambda x: x.split('T')[0])
+df.plot(x='timestamp', y='avg_tweet_length', ylim=(80, 140), rot=20,
+        title='Sochi 2014')
+plt.ylabel('avg tweet length (chars)')
+plt.show()
+```
+
+![alt text](https://github.com/metamx/pydruid/raw/docs/docs/figures/avg_tweet_length.png "Avg. tweet length")
+
+## topN 
+
+Who were the top ten mentions (@user_name) during the 2014 Oscars?
+
+```python
+top = query.topn(
+    datasource='twitterstream',
+    granularity='all',
+    intervals='2014-03-03/p1d',  # utc time of 2014 oscars
+    aggregations={'count': doublesum('count')},
+    dimension='user_mention_name',
+    filter=(Dimension('user_lang') == 'en') & (Dimension('first_hashtag') == 'oscars') &
+           (Dimension('user_time_zone') == 'Pacific Time (US & Canada)') &
+           ~(Dimension('user_mention_name') == 'No Mention'),
+    metric='count',
+    threshold=10
+)
+
+df = query.export_pandas()
+print df
+
+   count                 timestamp user_mention_name
+0   1303  2014-03-03T00:00:00.000Z      TheEllenShow
+1     44  2014-03-03T00:00:00.000Z        TheAcademy
+2     21  2014-03-03T00:00:00.000Z               MTV
+3     21  2014-03-03T00:00:00.000Z         peoplemag
+4     17  2014-03-03T00:00:00.000Z               THR
+5     16  2014-03-03T00:00:00.000Z      ItsQueenElsa
+6     16  2014-03-03T00:00:00.000Z           eonline
+7     15  2014-03-03T00:00:00.000Z       PerezHilton
+8     14  2014-03-03T00:00:00.000Z     realjohngreen
+9     12  2014-03-03T00:00:00.000Z       KevinSpacey
+
+```
+
+## groupby
+
+What does the social network of users replying to other users look like?
+
+```python
+from igraph import *
+from cairo import *
+from pandas import concat
+
+group = query.groupby(
+    datasource='twitterstream',
+    granularity='hour',
+    intervals='2013-10-04/pt12h',
+    dimensions=["user_name", "reply_to_name"],
+    filter=(~(Dimension("reply_to_name") == "Not A Reply")) &
+           (Dimension("user_location") == "California"),
+    aggregations={"count": doublesum("count")}
+)
+
+df = query.export_pandas()
+
+# map names to categorical variables with a lookup table
+names = concat([df['user_name'], df['reply_to_name']]).unique()
+nameLookup = dict([pair[::-1] for pair in enumerate(names)])
+df['user_name_lookup'] = df['user_name'].map(nameLookup.get)
+df['reply_to_name_lookup'] = df['reply_to_name'].map(nameLookup.get)
+
+# create the graph with igraph
+g = Graph(len(names), directed=False)
+vertices = zip(df['user_name_lookup'], df['reply_to_name_lookup'])
+g.vs["name"] = names
+g.add_edges(vertices)
+layout = g.layout_fruchterman_reingold()
+plot(g, "tweets.png", layout=layout, vertex_size=2, bbox=(400, 400), margin=25, edge_width=1, vertex_color="blue")
+```
+
+![alt text](https://github.com/metamx/pydruid/raw/docs/docs/figures/twitter_graph.png "Social Network")
+
+
+#documentation
+
+pydruid is a [Sphinx](http://sphinx-doc.org/) project. You can view documentation locally by opening the following with a web browser: 
+
+```python
+pydruid/docs/build/html/index.html
+```
+
+The docstrings are written in [ReStructuredText](http://docutils.sourceforge.net/rst.html). If edited, documentation can be re-generated by running:
+
+```python
+make html
+```
+
+from within the docs directory, assuming Sphinx is installed on your machine.
+
+
+
+
diff --git a/README.txt b/README.txt
deleted file mode 100644
index de43975a..00000000
--- a/README.txt
+++ /dev/null
@@ -1,27 +0,0 @@
-===========
-pyDruid
-===========
-
-pyDruid provides a python interface to the Druid analytic store. Typical usage
-often looks like this::
-
-    #!/usr/bin/env python
-
-    from pydruid.client import *
-
-    # Druid Config
-    endpoint = 'druid/v2/?pretty'
-    demo_bard_url =  'http://localhost:8083'
-    dataSource = 'wikipedia'
-    intervals = ["2013-01-01/p1y"]
-
-    query = pyDruid(demo_bard_url, endpoint)
-
-    counts = query.timeseries(dataSource = dataSource, 
-    	          granularity = "minute", 
-    			  intervals = intervals, 
-    			  aggregations = {"count" : doubleSum("edits")}
-    		      )
-
-    print counts
-    [{'timestamp': '2013-09-30T23:31:00.000Z', 'result': {'count': 0.0}}, {'timestamp': '2013-09-30T23:32:00.000Z', 'result': {'count': 0.0}}, {'timestamp': '2013-09-30T23:33:00.000Z', 'result': {'count': 0.0}}, {'timestamp': '2013-09-30T23:34:00.000Z', 'result': {'count': 0.0}}]
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diff --git a/docs/Makefile b/docs/Makefile
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+++ b/docs/Makefile
@@ -0,0 +1,177 @@
+# Makefile for Sphinx documentation
+#
+
+# You can set these variables from the command line.
+SPHINXOPTS    =
+SPHINXBUILD   = sphinx-build
+PAPER         =
+BUILDDIR      = build
+
+# User-friendly check for sphinx-build
+ifeq ($(shell which $(SPHINXBUILD) >/dev/null 2>&1; echo $$?), 1)
+$(error The '$(SPHINXBUILD)' command was not found. Make sure you have Sphinx installed, then set the SPHINXBUILD environment variable to point to the full path of the '$(SPHINXBUILD)' executable. Alternatively you can add the directory with the executable to your PATH. If you don't have Sphinx installed, grab it from http://sphinx-doc.org/)
+endif
+
+# Internal variables.
+PAPEROPT_a4     = -D latex_paper_size=a4
+PAPEROPT_letter = -D latex_paper_size=letter
+ALLSPHINXOPTS   = -d $(BUILDDIR)/doctrees $(PAPEROPT_$(PAPER)) $(SPHINXOPTS) source
+# the i18n builder cannot share the environment and doctrees with the others
+I18NSPHINXOPTS  = $(PAPEROPT_$(PAPER)) $(SPHINXOPTS) source
+
+.PHONY: help clean html dirhtml singlehtml pickle json htmlhelp qthelp devhelp epub latex latexpdf text man changes linkcheck doctest gettext
+
+help:
+	@echo "Please use \`make <target>' where <target> is one of"
+	@echo "  html       to make standalone HTML files"
+	@echo "  dirhtml    to make HTML files named index.html in directories"
+	@echo "  singlehtml to make a single large HTML file"
+	@echo "  pickle     to make pickle files"
+	@echo "  json       to make JSON files"
+	@echo "  htmlhelp   to make HTML files and a HTML help project"
+	@echo "  qthelp     to make HTML files and a qthelp project"
+	@echo "  devhelp    to make HTML files and a Devhelp project"
+	@echo "  epub       to make an epub"
+	@echo "  latex      to make LaTeX files, you can set PAPER=a4 or PAPER=letter"
+	@echo "  latexpdf   to make LaTeX files and run them through pdflatex"
+	@echo "  latexpdfja to make LaTeX files and run them through platex/dvipdfmx"
+	@echo "  text       to make text files"
+	@echo "  man        to make manual pages"
+	@echo "  texinfo    to make Texinfo files"
+	@echo "  info       to make Texinfo files and run them through makeinfo"
+	@echo "  gettext    to make PO message catalogs"
+	@echo "  changes    to make an overview of all changed/added/deprecated items"
+	@echo "  xml        to make Docutils-native XML files"
+	@echo "  pseudoxml  to make pseudoxml-XML files for display purposes"
+	@echo "  linkcheck  to check all external links for integrity"
+	@echo "  doctest    to run all doctests embedded in the documentation (if enabled)"
+
+clean:
+	rm -rf $(BUILDDIR)/*
+
+html:
+	$(SPHINXBUILD) -b html $(ALLSPHINXOPTS) $(BUILDDIR)/html
+	@echo
+	@echo "Build finished. The HTML pages are in $(BUILDDIR)/html."
+
+dirhtml:
+	$(SPHINXBUILD) -b dirhtml $(ALLSPHINXOPTS) $(BUILDDIR)/dirhtml
+	@echo
+	@echo "Build finished. The HTML pages are in $(BUILDDIR)/dirhtml."
+
+singlehtml:
+	$(SPHINXBUILD) -b singlehtml $(ALLSPHINXOPTS) $(BUILDDIR)/singlehtml
+	@echo
+	@echo "Build finished. The HTML page is in $(BUILDDIR)/singlehtml."
+
+pickle:
+	$(SPHINXBUILD) -b pickle $(ALLSPHINXOPTS) $(BUILDDIR)/pickle
+	@echo
+	@echo "Build finished; now you can process the pickle files."
+
+json:
+	$(SPHINXBUILD) -b json $(ALLSPHINXOPTS) $(BUILDDIR)/json
+	@echo
+	@echo "Build finished; now you can process the JSON files."
+
+htmlhelp:
+	$(SPHINXBUILD) -b htmlhelp $(ALLSPHINXOPTS) $(BUILDDIR)/htmlhelp
+	@echo
+	@echo "Build finished; now you can run HTML Help Workshop with the" \
+	      ".hhp project file in $(BUILDDIR)/htmlhelp."
+
+qthelp:
+	$(SPHINXBUILD) -b qthelp $(ALLSPHINXOPTS) $(BUILDDIR)/qthelp
+	@echo
+	@echo "Build finished; now you can run "qcollectiongenerator" with the" \
+	      ".qhcp project file in $(BUILDDIR)/qthelp, like this:"
+	@echo "# qcollectiongenerator $(BUILDDIR)/qthelp/PyDruid.qhcp"
+	@echo "To view the help file:"
+	@echo "# assistant -collectionFile $(BUILDDIR)/qthelp/PyDruid.qhc"
+
+devhelp:
+	$(SPHINXBUILD) -b devhelp $(ALLSPHINXOPTS) $(BUILDDIR)/devhelp
+	@echo
+	@echo "Build finished."
+	@echo "To view the help file:"
+	@echo "# mkdir -p $$HOME/.local/share/devhelp/PyDruid"
+	@echo "# ln -s $(BUILDDIR)/devhelp $$HOME/.local/share/devhelp/PyDruid"
+	@echo "# devhelp"
+
+epub:
+	$(SPHINXBUILD) -b epub $(ALLSPHINXOPTS) $(BUILDDIR)/epub
+	@echo
+	@echo "Build finished. The epub file is in $(BUILDDIR)/epub."
+
+latex:
+	$(SPHINXBUILD) -b latex $(ALLSPHINXOPTS) $(BUILDDIR)/latex
+	@echo
+	@echo "Build finished; the LaTeX files are in $(BUILDDIR)/latex."
+	@echo "Run \`make' in that directory to run these through (pdf)latex" \
+	      "(use \`make latexpdf' here to do that automatically)."
+
+latexpdf:
+	$(SPHINXBUILD) -b latex $(ALLSPHINXOPTS) $(BUILDDIR)/latex
+	@echo "Running LaTeX files through pdflatex..."
+	$(MAKE) -C $(BUILDDIR)/latex all-pdf
+	@echo "pdflatex finished; the PDF files are in $(BUILDDIR)/latex."
+
+latexpdfja:
+	$(SPHINXBUILD) -b latex $(ALLSPHINXOPTS) $(BUILDDIR)/latex
+	@echo "Running LaTeX files through platex and dvipdfmx..."
+	$(MAKE) -C $(BUILDDIR)/latex all-pdf-ja
+	@echo "pdflatex finished; the PDF files are in $(BUILDDIR)/latex."
+
+text:
+	$(SPHINXBUILD) -b text $(ALLSPHINXOPTS) $(BUILDDIR)/text
+	@echo
+	@echo "Build finished. The text files are in $(BUILDDIR)/text."
+
+man:
+	$(SPHINXBUILD) -b man $(ALLSPHINXOPTS) $(BUILDDIR)/man
+	@echo
+	@echo "Build finished. The manual pages are in $(BUILDDIR)/man."
+
+texinfo:
+	$(SPHINXBUILD) -b texinfo $(ALLSPHINXOPTS) $(BUILDDIR)/texinfo
+	@echo
+	@echo "Build finished. The Texinfo files are in $(BUILDDIR)/texinfo."
+	@echo "Run \`make' in that directory to run these through makeinfo" \
+	      "(use \`make info' here to do that automatically)."
+
+info:
+	$(SPHINXBUILD) -b texinfo $(ALLSPHINXOPTS) $(BUILDDIR)/texinfo
+	@echo "Running Texinfo files through makeinfo..."
+	make -C $(BUILDDIR)/texinfo info
+	@echo "makeinfo finished; the Info files are in $(BUILDDIR)/texinfo."
+
+gettext:
+	$(SPHINXBUILD) -b gettext $(I18NSPHINXOPTS) $(BUILDDIR)/locale
+	@echo
+	@echo "Build finished. The message catalogs are in $(BUILDDIR)/locale."
+
+changes:
+	$(SPHINXBUILD) -b changes $(ALLSPHINXOPTS) $(BUILDDIR)/changes
+	@echo
+	@echo "The overview file is in $(BUILDDIR)/changes."
+
+linkcheck:
+	$(SPHINXBUILD) -b linkcheck $(ALLSPHINXOPTS) $(BUILDDIR)/linkcheck
+	@echo
+	@echo "Link check complete; look for any errors in the above output " \
+	      "or in $(BUILDDIR)/linkcheck/output.txt."
+
+doctest:
+	$(SPHINXBUILD) -b doctest $(ALLSPHINXOPTS) $(BUILDDIR)/doctest
+	@echo "Testing of doctests in the sources finished, look at the " \
+	      "results in $(BUILDDIR)/doctest/output.txt."
+
+xml:
+	$(SPHINXBUILD) -b xml $(ALLSPHINXOPTS) $(BUILDDIR)/xml
+	@echo
+	@echo "Build finished. The XML files are in $(BUILDDIR)/xml."
+
+pseudoxml:
+	$(SPHINXBUILD) -b pseudoxml $(ALLSPHINXOPTS) $(BUILDDIR)/pseudoxml
+	@echo
+	@echo "Build finished. The pseudo-XML files are in $(BUILDDIR)/pseudoxml."
diff --git a/docs/build/.DS_Store b/docs/build/.DS_Store
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diff --git a/docs/build/html/.buildinfo b/docs/build/html/.buildinfo
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index 00000000..2fec6e1a
--- /dev/null
+++ b/docs/build/html/.buildinfo
@@ -0,0 +1,4 @@
+# Sphinx build info version 1
+# This file hashes the configuration used when building these files. When it is not found, a full rebuild will be done.
+config: e0a9069122c14226639caf781d513013
+tags: 645f666f9bcd5a90fca523b33c5a78b7
diff --git a/docs/build/html/_sources/index.txt b/docs/build/html/_sources/index.txt
new file mode 100644
index 00000000..d60912b5
--- /dev/null
+++ b/docs/build/html/_sources/index.txt
@@ -0,0 +1,25 @@
+.. PyDruid documentation master file, created by
+   sphinx-quickstart on Mon Mar  3 16:38:17 2014.
+   You can adapt this file completely to your liking, but it should at least
+   contain the root `toctree` directive.
+
+Welcome to PyDruid's documentation!
+===================================
+
+Contents:
+
+.. toctree::
+   :maxdepth: 2
+
+.. automodule:: pydruid
+ 
+.. autoclass:: client.PyDruid
+    :members:
+
+Indices and tables
+==================
+
+* :ref:`genindex`
+* :ref:`modindex`
+* :ref:`search`
+
diff --git a/docs/build/html/_static/ajax-loader.gif b/docs/build/html/_static/ajax-loader.gif
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diff --git a/docs/build/html/_static/basic.css b/docs/build/html/_static/basic.css
new file mode 100644
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--- /dev/null
+++ b/docs/build/html/_static/basic.css
@@ -0,0 +1,537 @@
+/*
+ * basic.css
+ * ~~~~~~~~~
+ *
+ * Sphinx stylesheet -- basic theme.
+ *
+ * :copyright: Copyright 2007-2013 by the Sphinx team, see AUTHORS.
+ * :license: BSD, see LICENSE for details.
+ *
+ */
+
+/* -- main layout ----------------------------------------------------------- */
+
+div.clearer {
+    clear: both;
+}
+
+/* -- relbar ---------------------------------------------------------------- */
+
+div.related {
+    width: 100%;
+    font-size: 90%;
+}
+
+div.related h3 {
+    display: none;
+}
+
+div.related ul {
+    margin: 0;
+    padding: 0 0 0 10px;
+    list-style: none;
+}
+
+div.related li {
+    display: inline;
+}
+
+div.related li.right {
+    float: right;
+    margin-right: 5px;
+}
+
+/* -- sidebar --------------------------------------------------------------- */
+
+div.sphinxsidebarwrapper {
+    padding: 10px 5px 0 10px;
+}
+
+div.sphinxsidebar {
+    float: left;
+    width: 230px;
+    margin-left: -100%;
+    font-size: 90%;
+}
+
+div.sphinxsidebar ul {
+    list-style: none;
+}
+
+div.sphinxsidebar ul ul,
+div.sphinxsidebar ul.want-points {
+    margin-left: 20px;
+    list-style: square;
+}
+
+div.sphinxsidebar ul ul {
+    margin-top: 0;
+    margin-bottom: 0;
+}
+
+div.sphinxsidebar form {
+    margin-top: 10px;
+}
+
+div.sphinxsidebar input {
+    border: 1px solid #98dbcc;
+    font-family: sans-serif;
+    font-size: 1em;
+}
+
+div.sphinxsidebar #searchbox input[type="text"] {
+    width: 170px;
+}
+
+div.sphinxsidebar #searchbox input[type="submit"] {
+    width: 30px;
+}
+
+img {
+    border: 0;
+    max-width: 100%;
+}
+
+/* -- search page ----------------------------------------------------------- */
+
+ul.search {
+    margin: 10px 0 0 20px;
+    padding: 0;
+}
+
+ul.search li {
+    padding: 5px 0 5px 20px;
+    background-image: url(file.png);
+    background-repeat: no-repeat;
+    background-position: 0 7px;
+}
+
+ul.search li a {
+    font-weight: bold;
+}
+
+ul.search li div.context {
+    color: #888;
+    margin: 2px 0 0 30px;
+    text-align: left;
+}
+
+ul.keywordmatches li.goodmatch a {
+    font-weight: bold;
+}
+
+/* -- index page ------------------------------------------------------------ */
+
+table.contentstable {
+    width: 90%;
+}
+
+table.contentstable p.biglink {
+    line-height: 150%;
+}
+
+a.biglink {
+    font-size: 1.3em;
+}
+
+span.linkdescr {
+    font-style: italic;
+    padding-top: 5px;
+    font-size: 90%;
+}
+
+/* -- general index --------------------------------------------------------- */
+
+table.indextable {
+    width: 100%;
+}
+
+table.indextable td {
+    text-align: left;
+    vertical-align: top;
+}
+
+table.indextable dl, table.indextable dd {
+    margin-top: 0;
+    margin-bottom: 0;
+}
+
+table.indextable tr.pcap {
+    height: 10px;
+}
+
+table.indextable tr.cap {
+    margin-top: 10px;
+    background-color: #f2f2f2;
+}
+
+img.toggler {
+    margin-right: 3px;
+    margin-top: 3px;
+    cursor: pointer;
+}
+
+div.modindex-jumpbox {
+    border-top: 1px solid #ddd;
+    border-bottom: 1px solid #ddd;
+    margin: 1em 0 1em 0;
+    padding: 0.4em;
+}
+
+div.genindex-jumpbox {
+    border-top: 1px solid #ddd;
+    border-bottom: 1px solid #ddd;
+    margin: 1em 0 1em 0;
+    padding: 0.4em;
+}
+
+/* -- general body styles --------------------------------------------------- */
+
+a.headerlink {
+    visibility: hidden;
+}
+
+h1:hover > a.headerlink,
+h2:hover > a.headerlink,
+h3:hover > a.headerlink,
+h4:hover > a.headerlink,
+h5:hover > a.headerlink,
+h6:hover > a.headerlink,
+dt:hover > a.headerlink {
+    visibility: visible;
+}
+
+div.body p.caption {
+    text-align: inherit;
+}
+
+div.body td {
+    text-align: left;
+}
+
+.field-list ul {
+    padding-left: 1em;
+}
+
+.first {
+    margin-top: 0 !important;
+}
+
+p.rubric {
+    margin-top: 30px;
+    font-weight: bold;
+}
+
+img.align-left, .figure.align-left, object.align-left {
+    clear: left;
+    float: left;
+    margin-right: 1em;
+}
+
+img.align-right, .figure.align-right, object.align-right {
+    clear: right;
+    float: right;
+    margin-left: 1em;
+}
+
+img.align-center, .figure.align-center, object.align-center {
+  display: block;
+  margin-left: auto;
+  margin-right: auto;
+}
+
+.align-left {
+    text-align: left;
+}
+
+.align-center {
+    text-align: center;
+}
+
+.align-right {
+    text-align: right;
+}
+
+/* -- sidebars -------------------------------------------------------------- */
+
+div.sidebar {
+    margin: 0 0 0.5em 1em;
+    border: 1px solid #ddb;
+    padding: 7px 7px 0 7px;
+    background-color: #ffe;
+    width: 40%;
+    float: right;
+}
+
+p.sidebar-title {
+    font-weight: bold;
+}
+
+/* -- topics ---------------------------------------------------------------- */
+
+div.topic {
+    border: 1px solid #ccc;
+    padding: 7px 7px 0 7px;
+    margin: 10px 0 10px 0;
+}
+
+p.topic-title {
+    font-size: 1.1em;
+    font-weight: bold;
+    margin-top: 10px;
+}
+
+/* -- admonitions ----------------------------------------------------------- */
+
+div.admonition {
+    margin-top: 10px;
+    margin-bottom: 10px;
+    padding: 7px;
+}
+
+div.admonition dt {
+    font-weight: bold;
+}
+
+div.admonition dl {
+    margin-bottom: 0;
+}
+
+p.admonition-title {
+    margin: 0px 10px 5px 0px;
+    font-weight: bold;
+}
+
+div.body p.centered {
+    text-align: center;
+    margin-top: 25px;
+}
+
+/* -- tables ---------------------------------------------------------------- */
+
+table.docutils {
+    border: 0;
+    border-collapse: collapse;
+}
+
+table.docutils td, table.docutils th {
+    padding: 1px 8px 1px 5px;
+    border-top: 0;
+    border-left: 0;
+    border-right: 0;
+    border-bottom: 1px solid #aaa;
+}
+
+table.field-list td, table.field-list th {
+    border: 0 !important;
+}
+
+table.footnote td, table.footnote th {
+    border: 0 !important;
+}
+
+th {
+    text-align: left;
+    padding-right: 5px;
+}
+
+table.citation {
+    border-left: solid 1px gray;
+    margin-left: 1px;
+}
+
+table.citation td {
+    border-bottom: none;
+}
+
+/* -- other body styles ----------------------------------------------------- */
+
+ol.arabic {
+    list-style: decimal;
+}
+
+ol.loweralpha {
+    list-style: lower-alpha;
+}
+
+ol.upperalpha {
+    list-style: upper-alpha;
+}
+
+ol.lowerroman {
+    list-style: lower-roman;
+}
+
+ol.upperroman {
+    list-style: upper-roman;
+}
+
+dl {
+    margin-bottom: 15px;
+}
+
+dd p {
+    margin-top: 0px;
+}
+
+dd ul, dd table {
+    margin-bottom: 10px;
+}
+
+dd {
+    margin-top: 3px;
+    margin-bottom: 10px;
+    margin-left: 30px;
+}
+
+dt:target, .highlighted {
+    background-color: #fbe54e;
+}
+
+dl.glossary dt {
+    font-weight: bold;
+    font-size: 1.1em;
+}
+
+.field-list ul {
+    margin: 0;
+    padding-left: 1em;
+}
+
+.field-list p {
+    margin: 0;
+}
+
+.optional {
+    font-size: 1.3em;
+}
+
+.versionmodified {
+    font-style: italic;
+}
+
+.system-message {
+    background-color: #fda;
+    padding: 5px;
+    border: 3px solid red;
+}
+
+.footnote:target  {
+    background-color: #ffa;
+}
+
+.line-block {
+    display: block;
+    margin-top: 1em;
+    margin-bottom: 1em;
+}
+
+.line-block .line-block {
+    margin-top: 0;
+    margin-bottom: 0;
+    margin-left: 1.5em;
+}
+
+.guilabel, .menuselection {
+    font-family: sans-serif;
+}
+
+.accelerator {
+    text-decoration: underline;
+}
+
+.classifier {
+    font-style: oblique;
+}
+
+abbr, acronym {
+    border-bottom: dotted 1px;
+    cursor: help;
+}
+
+/* -- code displays --------------------------------------------------------- */
+
+pre {
+    overflow: auto;
+    overflow-y: hidden;  /* fixes display issues on Chrome browsers */
+}
+
+td.linenos pre {
+    padding: 5px 0px;
+    border: 0;
+    background-color: transparent;
+    color: #aaa;
+}
+
+table.highlighttable {
+    margin-left: 0.5em;
+}
+
+table.highlighttable td {
+    padding: 0 0.5em 0 0.5em;
+}
+
+tt.descname {
+    background-color: transparent;
+    font-weight: bold;
+    font-size: 1.2em;
+}
+
+tt.descclassname {
+    background-color: transparent;
+}
+
+tt.xref, a tt {
+    background-color: transparent;
+    font-weight: bold;
+}
+
+h1 tt, h2 tt, h3 tt, h4 tt, h5 tt, h6 tt {
+    background-color: transparent;
+}
+
+.viewcode-link {
+    float: right;
+}
+
+.viewcode-back {
+    float: right;
+    font-family: sans-serif;
+}
+
+div.viewcode-block:target {
+    margin: -1px -10px;
+    padding: 0 10px;
+}
+
+/* -- math display ---------------------------------------------------------- */
+
+img.math {
+    vertical-align: middle;
+}
+
+div.body div.math p {
+    text-align: center;
+}
+
+span.eqno {
+    float: right;
+}
+
+/* -- printout stylesheet --------------------------------------------------- */
+
+@media print {
+    div.document,
+    div.documentwrapper,
+    div.bodywrapper {
+        margin: 0 !important;
+        width: 100%;
+    }
+
+    div.sphinxsidebar,
+    div.related,
+    div.footer,
+    #top-link {
+        display: none;
+    }
+}
\ No newline at end of file
diff --git a/docs/build/html/_static/comment-bright.png b/docs/build/html/_static/comment-bright.png
new file mode 100644
index 00000000..551517b8
Binary files /dev/null and b/docs/build/html/_static/comment-bright.png differ
diff --git a/docs/build/html/_static/comment-close.png b/docs/build/html/_static/comment-close.png
new file mode 100644
index 00000000..09b54be4
Binary files /dev/null and b/docs/build/html/_static/comment-close.png differ
diff --git a/docs/build/html/_static/comment.png b/docs/build/html/_static/comment.png
new file mode 100644
index 00000000..92feb52b
Binary files /dev/null and b/docs/build/html/_static/comment.png differ
diff --git a/docs/build/html/_static/default.css b/docs/build/html/_static/default.css
new file mode 100644
index 00000000..e534a078
--- /dev/null
+++ b/docs/build/html/_static/default.css
@@ -0,0 +1,256 @@
+/*
+ * default.css_t
+ * ~~~~~~~~~~~~~
+ *
+ * Sphinx stylesheet -- default theme.
+ *
+ * :copyright: Copyright 2007-2013 by the Sphinx team, see AUTHORS.
+ * :license: BSD, see LICENSE for details.
+ *
+ */
+
+@import url("basic.css");
+
+/* -- page layout ----------------------------------------------------------- */
+
+body {
+    font-family: sans-serif;
+    font-size: 100%;
+    background-color: #11303d;
+    color: #000;
+    margin: 0;
+    padding: 0;
+}
+
+div.document {
+    background-color: #1c4e63;
+}
+
+div.documentwrapper {
+    float: left;
+    width: 100%;
+}
+
+div.bodywrapper {
+    margin: 0 0 0 230px;
+}
+
+div.body {
+    background-color: #ffffff;
+    color: #000000;
+    padding: 0 20px 30px 20px;
+}
+
+div.footer {
+    color: #ffffff;
+    width: 100%;
+    padding: 9px 0 9px 0;
+    text-align: center;
+    font-size: 75%;
+}
+
+div.footer a {
+    color: #ffffff;
+    text-decoration: underline;
+}
+
+div.related {
+    background-color: #133f52;
+    line-height: 30px;
+    color: #ffffff;
+}
+
+div.related a {
+    color: #ffffff;
+}
+
+div.sphinxsidebar {
+}
+
+div.sphinxsidebar h3 {
+    font-family: 'Trebuchet MS', sans-serif;
+    color: #ffffff;
+    font-size: 1.4em;
+    font-weight: normal;
+    margin: 0;
+    padding: 0;
+}
+
+div.sphinxsidebar h3 a {
+    color: #ffffff;
+}
+
+div.sphinxsidebar h4 {
+    font-family: 'Trebuchet MS', sans-serif;
+    color: #ffffff;
+    font-size: 1.3em;
+    font-weight: normal;
+    margin: 5px 0 0 0;
+    padding: 0;
+}
+
+div.sphinxsidebar p {
+    color: #ffffff;
+}
+
+div.sphinxsidebar p.topless {
+    margin: 5px 10px 10px 10px;
+}
+
+div.sphinxsidebar ul {
+    margin: 10px;
+    padding: 0;
+    color: #ffffff;
+}
+
+div.sphinxsidebar a {
+    color: #98dbcc;
+}
+
+div.sphinxsidebar input {
+    border: 1px solid #98dbcc;
+    font-family: sans-serif;
+    font-size: 1em;
+}
+
+
+
+/* -- hyperlink styles ------------------------------------------------------ */
+
+a {
+    color: #355f7c;
+    text-decoration: none;
+}
+
+a:visited {
+    color: #355f7c;
+    text-decoration: none;
+}
+
+a:hover {
+    text-decoration: underline;
+}
+
+
+
+/* -- body styles ----------------------------------------------------------- */
+
+div.body h1,
+div.body h2,
+div.body h3,
+div.body h4,
+div.body h5,
+div.body h6 {
+    font-family: 'Trebuchet MS', sans-serif;
+    background-color: #f2f2f2;
+    font-weight: normal;
+    color: #20435c;
+    border-bottom: 1px solid #ccc;
+    margin: 20px -20px 10px -20px;
+    padding: 3px 0 3px 10px;
+}
+
+div.body h1 { margin-top: 0; font-size: 200%; }
+div.body h2 { font-size: 160%; }
+div.body h3 { font-size: 140%; }
+div.body h4 { font-size: 120%; }
+div.body h5 { font-size: 110%; }
+div.body h6 { font-size: 100%; }
+
+a.headerlink {
+    color: #c60f0f;
+    font-size: 0.8em;
+    padding: 0 4px 0 4px;
+    text-decoration: none;
+}
+
+a.headerlink:hover {
+    background-color: #c60f0f;
+    color: white;
+}
+
+div.body p, div.body dd, div.body li {
+    text-align: justify;
+    line-height: 130%;
+}
+
+div.admonition p.admonition-title + p {
+    display: inline;
+}
+
+div.admonition p {
+    margin-bottom: 5px;
+}
+
+div.admonition pre {
+    margin-bottom: 5px;
+}
+
+div.admonition ul, div.admonition ol {
+    margin-bottom: 5px;
+}
+
+div.note {
+    background-color: #eee;
+    border: 1px solid #ccc;
+}
+
+div.seealso {
+    background-color: #ffc;
+    border: 1px solid #ff6;
+}
+
+div.topic {
+    background-color: #eee;
+}
+
+div.warning {
+    background-color: #ffe4e4;
+    border: 1px solid #f66;
+}
+
+p.admonition-title {
+    display: inline;
+}
+
+p.admonition-title:after {
+    content: ":";
+}
+
+pre {
+    padding: 5px;
+    background-color: #eeffcc;
+    color: #333333;
+    line-height: 120%;
+    border: 1px solid #ac9;
+    border-left: none;
+    border-right: none;
+}
+
+tt {
+    background-color: #ecf0f3;
+    padding: 0 1px 0 1px;
+    font-size: 0.95em;
+}
+
+th {
+    background-color: #ede;
+}
+
+.warning tt {
+    background: #efc2c2;
+}
+
+.note tt {
+    background: #d6d6d6;
+}
+
+.viewcode-back {
+    font-family: sans-serif;
+}
+
+div.viewcode-block:target {
+    background-color: #f4debf;
+    border-top: 1px solid #ac9;
+    border-bottom: 1px solid #ac9;
+}
\ No newline at end of file
diff --git a/docs/build/html/_static/doctools.js b/docs/build/html/_static/doctools.js
new file mode 100644
index 00000000..2036e5f5
--- /dev/null
+++ b/docs/build/html/_static/doctools.js
@@ -0,0 +1,238 @@
+/*
+ * doctools.js
+ * ~~~~~~~~~~~
+ *
+ * Sphinx JavaScript utilities for all documentation.
+ *
+ * :copyright: Copyright 2007-2013 by the Sphinx team, see AUTHORS.
+ * :license: BSD, see LICENSE for details.
+ *
+ */
+
+/**
+ * select a different prefix for underscore
+ */
+$u = _.noConflict();
+
+/**
+ * make the code below compatible with browsers without
+ * an installed firebug like debugger
+if (!window.console || !console.firebug) {
+  var names = ["log", "debug", "info", "warn", "error", "assert", "dir",
+    "dirxml", "group", "groupEnd", "time", "timeEnd", "count", "trace",
+    "profile", "profileEnd"];
+  window.console = {};
+  for (var i = 0; i < names.length; ++i)
+    window.console[names[i]] = function() {};
+}
+ */
+
+/**
+ * small helper function to urldecode strings
+ */
+jQuery.urldecode = function(x) {
+  return decodeURIComponent(x).replace(/\+/g, ' ');
+};
+
+/**
+ * small helper function to urlencode strings
+ */
+jQuery.urlencode = encodeURIComponent;
+
+/**
+ * This function returns the parsed url parameters of the
+ * current request. Multiple values per key are supported,
+ * it will always return arrays of strings for the value parts.
+ */
+jQuery.getQueryParameters = function(s) {
+  if (typeof s == 'undefined')
+    s = document.location.search;
+  var parts = s.substr(s.indexOf('?') + 1).split('&');
+  var result = {};
+  for (var i = 0; i < parts.length; i++) {
+    var tmp = parts[i].split('=', 2);
+    var key = jQuery.urldecode(tmp[0]);
+    var value = jQuery.urldecode(tmp[1]);
+    if (key in result)
+      result[key].push(value);
+    else
+      result[key] = [value];
+  }
+  return result;
+};
+
+/**
+ * highlight a given string on a jquery object by wrapping it in
+ * span elements with the given class name.
+ */
+jQuery.fn.highlightText = function(text, className) {
+  function highlight(node) {
+    if (node.nodeType == 3) {
+      var val = node.nodeValue;
+      var pos = val.toLowerCase().indexOf(text);
+      if (pos >= 0 && !jQuery(node.parentNode).hasClass(className)) {
+        var span = document.createElement("span");
+        span.className = className;
+        span.appendChild(document.createTextNode(val.substr(pos, text.length)));
+        node.parentNode.insertBefore(span, node.parentNode.insertBefore(
+          document.createTextNode(val.substr(pos + text.length)),
+          node.nextSibling));
+        node.nodeValue = val.substr(0, pos);
+      }
+    }
+    else if (!jQuery(node).is("button, select, textarea")) {
+      jQuery.each(node.childNodes, function() {
+        highlight(this);
+      });
+    }
+  }
+  return this.each(function() {
+    highlight(this);
+  });
+};
+
+/**
+ * Small JavaScript module for the documentation.
+ */
+var Documentation = {
+
+  init : function() {
+    this.fixFirefoxAnchorBug();
+    this.highlightSearchWords();
+    this.initIndexTable();
+  },
+
+  /**
+   * i18n support
+   */
+  TRANSLATIONS : {},
+  PLURAL_EXPR : function(n) { return n == 1 ? 0 : 1; },
+  LOCALE : 'unknown',
+
+  // gettext and ngettext don't access this so that the functions
+  // can safely bound to a different name (_ = Documentation.gettext)
+  gettext : function(string) {
+    var translated = Documentation.TRANSLATIONS[string];
+    if (typeof translated == 'undefined')
+      return string;
+    return (typeof translated == 'string') ? translated : translated[0];
+  },
+
+  ngettext : function(singular, plural, n) {
+    var translated = Documentation.TRANSLATIONS[singular];
+    if (typeof translated == 'undefined')
+      return (n == 1) ? singular : plural;
+    return translated[Documentation.PLURALEXPR(n)];
+  },
+
+  addTranslations : function(catalog) {
+    for (var key in catalog.messages)
+      this.TRANSLATIONS[key] = catalog.messages[key];
+    this.PLURAL_EXPR = new Function('n', 'return +(' + catalog.plural_expr + ')');
+    this.LOCALE = catalog.locale;
+  },
+
+  /**
+   * add context elements like header anchor links
+   */
+  addContextElements : function() {
+    $('div[id] > :header:first').each(function() {
+      $('<a class="headerlink">\u00B6</a>').
+      attr('href', '#' + this.id).
+      attr('title', _('Permalink to this headline')).
+      appendTo(this);
+    });
+    $('dt[id]').each(function() {
+      $('<a class="headerlink">\u00B6</a>').
+      attr('href', '#' + this.id).
+      attr('title', _('Permalink to this definition')).
+      appendTo(this);
+    });
+  },
+
+  /**
+   * workaround a firefox stupidity
+   */
+  fixFirefoxAnchorBug : function() {
+    if (document.location.hash && $.browser.mozilla)
+      window.setTimeout(function() {
+        document.location.href += '';
+      }, 10);
+  },
+
+  /**
+   * highlight the search words provided in the url in the text
+   */
+  highlightSearchWords : function() {
+    var params = $.getQueryParameters();
+    var terms = (params.highlight) ? params.highlight[0].split(/\s+/) : [];
+    if (terms.length) {
+      var body = $('div.body');
+      if (!body.length) {
+        body = $('body');
+      }
+      window.setTimeout(function() {
+        $.each(terms, function() {
+          body.highlightText(this.toLowerCase(), 'highlighted');
+        });
+      }, 10);
+      $('<p class="highlight-link"><a href="javascript:Documentation.' +
+        'hideSearchWords()">' + _('Hide Search Matches') + '</a></p>')
+          .appendTo($('#searchbox'));
+    }
+  },
+
+  /**
+   * init the domain index toggle buttons
+   */
+  initIndexTable : function() {
+    var togglers = $('img.toggler').click(function() {
+      var src = $(this).attr('src');
+      var idnum = $(this).attr('id').substr(7);
+      $('tr.cg-' + idnum).toggle();
+      if (src.substr(-9) == 'minus.png')
+        $(this).attr('src', src.substr(0, src.length-9) + 'plus.png');
+      else
+        $(this).attr('src', src.substr(0, src.length-8) + 'minus.png');
+    }).css('display', '');
+    if (DOCUMENTATION_OPTIONS.COLLAPSE_INDEX) {
+        togglers.click();
+    }
+  },
+
+  /**
+   * helper function to hide the search marks again
+   */
+  hideSearchWords : function() {
+    $('#searchbox .highlight-link').fadeOut(300);
+    $('span.highlighted').removeClass('highlighted');
+  },
+
+  /**
+   * make the url absolute
+   */
+  makeURL : function(relativeURL) {
+    return DOCUMENTATION_OPTIONS.URL_ROOT + '/' + relativeURL;
+  },
+
+  /**
+   * get the current relative url
+   */
+  getCurrentURL : function() {
+    var path = document.location.pathname;
+    var parts = path.split(/\//);
+    $.each(DOCUMENTATION_OPTIONS.URL_ROOT.split(/\//), function() {
+      if (this == '..')
+        parts.pop();
+    });
+    var url = parts.join('/');
+    return path.substring(url.lastIndexOf('/') + 1, path.length - 1);
+  }
+};
+
+// quick alias for translations
+_ = Documentation.gettext;
+
+$(document).ready(function() {
+  Documentation.init();
+});
diff --git a/docs/build/html/_static/down-pressed.png b/docs/build/html/_static/down-pressed.png
new file mode 100644
index 00000000..6f7ad782
Binary files /dev/null and b/docs/build/html/_static/down-pressed.png differ
diff --git a/docs/build/html/_static/down.png b/docs/build/html/_static/down.png
new file mode 100644
index 00000000..3003a887
Binary files /dev/null and b/docs/build/html/_static/down.png differ
diff --git a/docs/build/html/_static/file.png b/docs/build/html/_static/file.png
new file mode 100644
index 00000000..d18082e3
Binary files /dev/null and b/docs/build/html/_static/file.png differ
diff --git a/docs/build/html/_static/jquery.js b/docs/build/html/_static/jquery.js
new file mode 100644
index 00000000..83589daa
--- /dev/null
+++ b/docs/build/html/_static/jquery.js
@@ -0,0 +1,2 @@
+/*! jQuery v1.8.3 jquery.com | jquery.org/license */
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+.highlight .hll { background-color: #ffffcc }
+.highlight  { background: #eeffcc; }
+.highlight .c { color: #408090; font-style: italic } /* Comment */
+.highlight .err { border: 1px solid #FF0000 } /* Error */
+.highlight .k { color: #007020; font-weight: bold } /* Keyword */
+.highlight .o { color: #666666 } /* Operator */
+.highlight .cm { color: #408090; font-style: italic } /* Comment.Multiline */
+.highlight .cp { color: #007020 } /* Comment.Preproc */
+.highlight .c1 { color: #408090; font-style: italic } /* Comment.Single */
+.highlight .cs { color: #408090; background-color: #fff0f0 } /* Comment.Special */
+.highlight .gd { color: #A00000 } /* Generic.Deleted */
+.highlight .ge { font-style: italic } /* Generic.Emph */
+.highlight .gr { color: #FF0000 } /* Generic.Error */
+.highlight .gh { color: #000080; font-weight: bold } /* Generic.Heading */
+.highlight .gi { color: #00A000 } /* Generic.Inserted */
+.highlight .go { color: #333333 } /* Generic.Output */
+.highlight .gp { color: #c65d09; font-weight: bold } /* Generic.Prompt */
+.highlight .gs { font-weight: bold } /* Generic.Strong */
+.highlight .gu { color: #800080; font-weight: bold } /* Generic.Subheading */
+.highlight .gt { color: #0044DD } /* Generic.Traceback */
+.highlight .kc { color: #007020; font-weight: bold } /* Keyword.Constant */
+.highlight .kd { color: #007020; font-weight: bold } /* Keyword.Declaration */
+.highlight .kn { color: #007020; font-weight: bold } /* Keyword.Namespace */
+.highlight .kp { color: #007020 } /* Keyword.Pseudo */
+.highlight .kr { color: #007020; font-weight: bold } /* Keyword.Reserved */
+.highlight .kt { color: #902000 } /* Keyword.Type */
+.highlight .m { color: #208050 } /* Literal.Number */
+.highlight .s { color: #4070a0 } /* Literal.String */
+.highlight .na { color: #4070a0 } /* Name.Attribute */
+.highlight .nb { color: #007020 } /* Name.Builtin */
+.highlight .nc { color: #0e84b5; font-weight: bold } /* Name.Class */
+.highlight .no { color: #60add5 } /* Name.Constant */
+.highlight .nd { color: #555555; font-weight: bold } /* Name.Decorator */
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+.highlight .nl { color: #002070; font-weight: bold } /* Name.Label */
+.highlight .nn { color: #0e84b5; font-weight: bold } /* Name.Namespace */
+.highlight .nt { color: #062873; font-weight: bold } /* Name.Tag */
+.highlight .nv { color: #bb60d5 } /* Name.Variable */
+.highlight .ow { color: #007020; font-weight: bold } /* Operator.Word */
+.highlight .w { color: #bbbbbb } /* Text.Whitespace */
+.highlight .mf { color: #208050 } /* Literal.Number.Float */
+.highlight .mh { color: #208050 } /* Literal.Number.Hex */
+.highlight .mi { color: #208050 } /* Literal.Number.Integer */
+.highlight .mo { color: #208050 } /* Literal.Number.Oct */
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diff --git a/docs/build/html/_static/searchtools.js b/docs/build/html/_static/searchtools.js
new file mode 100644
index 00000000..f5c7e5fe
--- /dev/null
+++ b/docs/build/html/_static/searchtools.js
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+/*
+ * searchtools.js_t
+ * ~~~~~~~~~~~~~~~~
+ *
+ * Sphinx JavaScript utilties for the full-text search.
+ *
+ * :copyright: Copyright 2007-2013 by the Sphinx team, see AUTHORS.
+ * :license: BSD, see LICENSE for details.
+ *
+ */
+
+
+/**
+ * Porter Stemmer
+ */
+var Stemmer = function() {
+
+  var step2list = {
+    ational: 'ate',
+    tional: 'tion',
+    enci: 'ence',
+    anci: 'ance',
+    izer: 'ize',
+    bli: 'ble',
+    alli: 'al',
+    entli: 'ent',
+    eli: 'e',
+    ousli: 'ous',
+    ization: 'ize',
+    ation: 'ate',
+    ator: 'ate',
+    alism: 'al',
+    iveness: 'ive',
+    fulness: 'ful',
+    ousness: 'ous',
+    aliti: 'al',
+    iviti: 'ive',
+    biliti: 'ble',
+    logi: 'log'
+  };
+
+  var step3list = {
+    icate: 'ic',
+    ative: '',
+    alize: 'al',
+    iciti: 'ic',
+    ical: 'ic',
+    ful: '',
+    ness: ''
+  };
+
+  var c = "[^aeiou]";          // consonant
+  var v = "[aeiouy]";          // vowel
+  var C = c + "[^aeiouy]*";    // consonant sequence
+  var V = v + "[aeiou]*";      // vowel sequence
+
+  var mgr0 = "^(" + C + ")?" + V + C;                      // [C]VC... is m>0
+  var meq1 = "^(" + C + ")?" + V + C + "(" + V + ")?$";    // [C]VC[V] is m=1
+  var mgr1 = "^(" + C + ")?" + V + C + V + C;              // [C]VCVC... is m>1
+  var s_v   = "^(" + C + ")?" + v;                         // vowel in stem
+
+  this.stemWord = function (w) {
+    var stem;
+    var suffix;
+    var firstch;
+    var origword = w;
+
+    if (w.length < 3)
+      return w;
+
+    var re;
+    var re2;
+    var re3;
+    var re4;
+
+    firstch = w.substr(0,1);
+    if (firstch == "y")
+      w = firstch.toUpperCase() + w.substr(1);
+
+    // Step 1a
+    re = /^(.+?)(ss|i)es$/;
+    re2 = /^(.+?)([^s])s$/;
+
+    if (re.test(w))
+      w = w.replace(re,"$1$2");
+    else if (re2.test(w))
+      w = w.replace(re2,"$1$2");
+
+    // Step 1b
+    re = /^(.+?)eed$/;
+    re2 = /^(.+?)(ed|ing)$/;
+    if (re.test(w)) {
+      var fp = re.exec(w);
+      re = new RegExp(mgr0);
+      if (re.test(fp[1])) {
+        re = /.$/;
+        w = w.replace(re,"");
+      }
+    }
+    else if (re2.test(w)) {
+      var fp = re2.exec(w);
+      stem = fp[1];
+      re2 = new RegExp(s_v);
+      if (re2.test(stem)) {
+        w = stem;
+        re2 = /(at|bl|iz)$/;
+        re3 = new RegExp("([^aeiouylsz])\\1$");
+        re4 = new RegExp("^" + C + v + "[^aeiouwxy]$");
+        if (re2.test(w))
+          w = w + "e";
+        else if (re3.test(w)) {
+          re = /.$/;
+          w = w.replace(re,"");
+        }
+        else if (re4.test(w))
+          w = w + "e";
+      }
+    }
+
+    // Step 1c
+    re = /^(.+?)y$/;
+    if (re.test(w)) {
+      var fp = re.exec(w);
+      stem = fp[1];
+      re = new RegExp(s_v);
+      if (re.test(stem))
+        w = stem + "i";
+    }
+
+    // Step 2
+    re = /^(.+?)(ational|tional|enci|anci|izer|bli|alli|entli|eli|ousli|ization|ation|ator|alism|iveness|fulness|ousness|aliti|iviti|biliti|logi)$/;
+    if (re.test(w)) {
+      var fp = re.exec(w);
+      stem = fp[1];
+      suffix = fp[2];
+      re = new RegExp(mgr0);
+      if (re.test(stem))
+        w = stem + step2list[suffix];
+    }
+
+    // Step 3
+    re = /^(.+?)(icate|ative|alize|iciti|ical|ful|ness)$/;
+    if (re.test(w)) {
+      var fp = re.exec(w);
+      stem = fp[1];
+      suffix = fp[2];
+      re = new RegExp(mgr0);
+      if (re.test(stem))
+        w = stem + step3list[suffix];
+    }
+
+    // Step 4
+    re = /^(.+?)(al|ance|ence|er|ic|able|ible|ant|ement|ment|ent|ou|ism|ate|iti|ous|ive|ize)$/;
+    re2 = /^(.+?)(s|t)(ion)$/;
+    if (re.test(w)) {
+      var fp = re.exec(w);
+      stem = fp[1];
+      re = new RegExp(mgr1);
+      if (re.test(stem))
+        w = stem;
+    }
+    else if (re2.test(w)) {
+      var fp = re2.exec(w);
+      stem = fp[1] + fp[2];
+      re2 = new RegExp(mgr1);
+      if (re2.test(stem))
+        w = stem;
+    }
+
+    // Step 5
+    re = /^(.+?)e$/;
+    if (re.test(w)) {
+      var fp = re.exec(w);
+      stem = fp[1];
+      re = new RegExp(mgr1);
+      re2 = new RegExp(meq1);
+      re3 = new RegExp("^" + C + v + "[^aeiouwxy]$");
+      if (re.test(stem) || (re2.test(stem) && !(re3.test(stem))))
+        w = stem;
+    }
+    re = /ll$/;
+    re2 = new RegExp(mgr1);
+    if (re.test(w) && re2.test(w)) {
+      re = /.$/;
+      w = w.replace(re,"");
+    }
+
+    // and turn initial Y back to y
+    if (firstch == "y")
+      w = firstch.toLowerCase() + w.substr(1);
+    return w;
+  }
+}
+
+
+
+/**
+ * Simple result scoring code.
+ */
+var Scorer = {
+  // Implement the following function to further tweak the score for each result
+  // The function takes a result array [filename, title, anchor, descr, score]
+  // and returns the new score.
+  /*
+  score: function(result) {
+    return result[4];
+  },
+  */
+
+  // query matches the full name of an object
+  objNameMatch: 11,
+  // or matches in the last dotted part of the object name
+  objPartialMatch: 6,
+  // Additive scores depending on the priority of the object
+  objPrio: {0:  15,   // used to be importantResults
+            1:  5,   // used to be objectResults
+            2: -5},  // used to be unimportantResults
+  //  Used when the priority is not in the mapping.
+  objPrioDefault: 0,
+
+  // query found in title
+  title: 15,
+  // query found in terms
+  term: 5
+};
+
+
+/**
+ * Search Module
+ */
+var Search = {
+
+  _index : null,
+  _queued_query : null,
+  _pulse_status : -1,
+
+  init : function() {
+      var params = $.getQueryParameters();
+      if (params.q) {
+          var query = params.q[0];
+          $('input[name="q"]')[0].value = query;
+          this.performSearch(query);
+      }
+  },
+
+  loadIndex : function(url) {
+    $.ajax({type: "GET", url: url, data: null,
+            dataType: "script", cache: true,
+            complete: function(jqxhr, textstatus) {
+              if (textstatus != "success") {
+                document.getElementById("searchindexloader").src = url;
+              }
+            }});
+  },
+
+  setIndex : function(index) {
+    var q;
+    this._index = index;
+    if ((q = this._queued_query) !== null) {
+      this._queued_query = null;
+      Search.query(q);
+    }
+  },
+
+  hasIndex : function() {
+      return this._index !== null;
+  },
+
+  deferQuery : function(query) {
+      this._queued_query = query;
+  },
+
+  stopPulse : function() {
+      this._pulse_status = 0;
+  },
+
+  startPulse : function() {
+    if (this._pulse_status >= 0)
+        return;
+    function pulse() {
+      var i;
+      Search._pulse_status = (Search._pulse_status + 1) % 4;
+      var dotString = '';
+      for (i = 0; i < Search._pulse_status; i++)
+        dotString += '.';
+      Search.dots.text(dotString);
+      if (Search._pulse_status > -1)
+        window.setTimeout(pulse, 500);
+    }
+    pulse();
+  },
+
+  /**
+   * perform a search for something (or wait until index is loaded)
+   */
+  performSearch : function(query) {
+    // create the required interface elements
+    this.out = $('#search-results');
+    this.title = $('<h2>' + _('Searching') + '</h2>').appendTo(this.out);
+    this.dots = $('<span></span>').appendTo(this.title);
+    this.status = $('<p style="display: none"></p>').appendTo(this.out);
+    this.output = $('<ul class="search"/>').appendTo(this.out);
+
+    $('#search-progress').text(_('Preparing search...'));
+    this.startPulse();
+
+    // index already loaded, the browser was quick!
+    if (this.hasIndex())
+      this.query(query);
+    else
+      this.deferQuery(query);
+  },
+
+  /**
+   * execute search (requires search index to be loaded)
+   */
+  query : function(query) {
+    var i;
+    var stopwords = ["a","and","are","as","at","be","but","by","for","if","in","into","is","it","near","no","not","of","on","or","such","that","the","their","then","there","these","they","this","to","was","will","with"];
+
+    // stem the searchterms and add them to the correct list
+    var stemmer = new Stemmer();
+    var searchterms = [];
+    var excluded = [];
+    var hlterms = [];
+    var tmp = query.split(/\s+/);
+    var objectterms = [];
+    for (i = 0; i < tmp.length; i++) {
+      if (tmp[i] !== "") {
+          objectterms.push(tmp[i].toLowerCase());
+      }
+
+      if ($u.indexOf(stopwords, tmp[i].toLowerCase()) != -1 || tmp[i].match(/^\d+$/) ||
+          tmp[i] === "") {
+        // skip this "word"
+        continue;
+      }
+      // stem the word
+      var word = stemmer.stemWord(tmp[i].toLowerCase());
+      var toAppend;
+      // select the correct list
+      if (word[0] == '-') {
+        toAppend = excluded;
+        word = word.substr(1);
+      }
+      else {
+        toAppend = searchterms;
+        hlterms.push(tmp[i].toLowerCase());
+      }
+      // only add if not already in the list
+      if (!$u.contains(toAppend, word))
+        toAppend.push(word);
+    }
+    var highlightstring = '?highlight=' + $.urlencode(hlterms.join(" "));
+
+    // console.debug('SEARCH: searching for:');
+    // console.info('required: ', searchterms);
+    // console.info('excluded: ', excluded);
+
+    // prepare search
+    var terms = this._index.terms;
+    var titleterms = this._index.titleterms;
+
+    // array of [filename, title, anchor, descr, score]
+    var results = [];
+    $('#search-progress').empty();
+
+    // lookup as object
+    for (i = 0; i < objectterms.length; i++) {
+      var others = [].concat(objectterms.slice(0, i),
+                             objectterms.slice(i+1, objectterms.length));
+      results = results.concat(this.performObjectSearch(objectterms[i], others));
+    }
+
+    // lookup as search terms in fulltext
+    results = results.concat(this.performTermsSearch(searchterms, excluded, terms, Scorer.term))
+                     .concat(this.performTermsSearch(searchterms, excluded, titleterms, Scorer.title));
+
+    // let the scorer override scores with a custom scoring function
+    if (Scorer.score) {
+      for (i = 0; i < results.length; i++)
+        results[i][4] = Scorer.score(results[i]);
+    }
+
+    // now sort the results by score (in opposite order of appearance, since the
+    // display function below uses pop() to retrieve items) and then
+    // alphabetically
+    results.sort(function(a, b) {
+      var left = a[4];
+      var right = b[4];
+      if (left > right) {
+        return 1;
+      } else if (left < right) {
+        return -1;
+      } else {
+        // same score: sort alphabetically
+        left = a[1].toLowerCase();
+        right = b[1].toLowerCase();
+        return (left > right) ? -1 : ((left < right) ? 1 : 0);
+      }
+    });
+
+    // for debugging
+    //Search.lastresults = results.slice();  // a copy
+    //console.info('search results:', Search.lastresults);
+
+    // print the results
+    var resultCount = results.length;
+    function displayNextItem() {
+      // results left, load the summary and display it
+      if (results.length) {
+        var item = results.pop();
+        var listItem = $('<li style="display:none"></li>');
+        if (DOCUMENTATION_OPTIONS.FILE_SUFFIX === '') {
+          // dirhtml builder
+          var dirname = item[0] + '/';
+          if (dirname.match(/\/index\/$/)) {
+            dirname = dirname.substring(0, dirname.length-6);
+          } else if (dirname == 'index/') {
+            dirname = '';
+          }
+          listItem.append($('<a/>').attr('href',
+            DOCUMENTATION_OPTIONS.URL_ROOT + dirname +
+            highlightstring + item[2]).html(item[1]));
+        } else {
+          // normal html builders
+          listItem.append($('<a/>').attr('href',
+            item[0] + DOCUMENTATION_OPTIONS.FILE_SUFFIX +
+            highlightstring + item[2]).html(item[1]));
+        }
+        if (item[3]) {
+          listItem.append($('<span> (' + item[3] + ')</span>'));
+          Search.output.append(listItem);
+          listItem.slideDown(5, function() {
+            displayNextItem();
+          });
+        } else if (DOCUMENTATION_OPTIONS.HAS_SOURCE) {
+          $.ajax({url: DOCUMENTATION_OPTIONS.URL_ROOT + '_sources/' + item[0] + '.txt',
+                  dataType: "text",
+                  complete: function(jqxhr, textstatus) {
+                    var data = jqxhr.responseText;
+                    if (data !== '') {
+                      listItem.append(Search.makeSearchSummary(data, searchterms, hlterms));
+                    }
+                    Search.output.append(listItem);
+                    listItem.slideDown(5, function() {
+                      displayNextItem();
+                    });
+                  }});
+        } else {
+          // no source available, just display title
+          Search.output.append(listItem);
+          listItem.slideDown(5, function() {
+            displayNextItem();
+          });
+        }
+      }
+      // search finished, update title and status message
+      else {
+        Search.stopPulse();
+        Search.title.text(_('Search Results'));
+        if (!resultCount)
+          Search.status.text(_('Your search did not match any documents. Please make sure that all words are spelled correctly and that you\'ve selected enough categories.'));
+        else
+            Search.status.text(_('Search finished, found %s page(s) matching the search query.').replace('%s', resultCount));
+        Search.status.fadeIn(500);
+      }
+    }
+    displayNextItem();
+  },
+
+  /**
+   * search for object names
+   */
+  performObjectSearch : function(object, otherterms) {
+    var filenames = this._index.filenames;
+    var objects = this._index.objects;
+    var objnames = this._index.objnames;
+    var titles = this._index.titles;
+
+    var i;
+    var results = [];
+
+    for (var prefix in objects) {
+      for (var name in objects[prefix]) {
+        var fullname = (prefix ? prefix + '.' : '') + name;
+        if (fullname.toLowerCase().indexOf(object) > -1) {
+          var score = 0;
+          var parts = fullname.split('.');
+          // check for different match types: exact matches of full name or
+          // "last name" (i.e. last dotted part)
+          if (fullname == object || parts[parts.length - 1] == object) {
+            score += Scorer.objNameMatch;
+          // matches in last name
+          } else if (parts[parts.length - 1].indexOf(object) > -1) {
+            score += Scorer.objPartialMatch;
+          }
+          var match = objects[prefix][name];
+          var objname = objnames[match[1]][2];
+          var title = titles[match[0]];
+          // If more than one term searched for, we require other words to be
+          // found in the name/title/description
+          if (otherterms.length > 0) {
+            var haystack = (prefix + ' ' + name + ' ' +
+                            objname + ' ' + title).toLowerCase();
+            var allfound = true;
+            for (i = 0; i < otherterms.length; i++) {
+              if (haystack.indexOf(otherterms[i]) == -1) {
+                allfound = false;
+                break;
+              }
+            }
+            if (!allfound) {
+              continue;
+            }
+          }
+          var descr = objname + _(', in ') + title;
+
+          var anchor = match[3];
+          if (anchor === '')
+            anchor = fullname;
+          else if (anchor == '-')
+            anchor = objnames[match[1]][1] + '-' + fullname;
+          // add custom score for some objects according to scorer
+          if (Scorer.objPrio.hasOwnProperty(match[2])) {
+            score += Scorer.objPrio[match[2]];
+          } else {
+            score += Scorer.objPrioDefault;
+          }
+          results.push([filenames[match[0]], fullname, '#'+anchor, descr, score]);
+        }
+      }
+    }
+
+    return results;
+  },
+
+  /**
+   * search for full-text terms in the index
+   */
+  performTermsSearch : function(searchterms, excluded, terms, score) {
+    var filenames = this._index.filenames;
+    var titles = this._index.titles;
+
+    var i, j, file, files;
+    var fileMap = {};
+    var results = [];
+
+    // perform the search on the required terms
+    for (i = 0; i < searchterms.length; i++) {
+      var word = searchterms[i];
+      // no match but word was a required one
+      if ((files = terms[word]) === undefined)
+        break;
+      if (files.length === undefined) {
+        files = [files];
+      }
+      // create the mapping
+      for (j = 0; j < files.length; j++) {
+        file = files[j];
+        if (file in fileMap)
+          fileMap[file].push(word);
+        else
+          fileMap[file] = [word];
+      }
+    }
+
+    // now check if the files don't contain excluded terms
+    for (file in fileMap) {
+      var valid = true;
+
+      // check if all requirements are matched
+      if (fileMap[file].length != searchterms.length)
+          continue;
+
+      // ensure that none of the excluded terms is in the search result
+      for (i = 0; i < excluded.length; i++) {
+        if (terms[excluded[i]] == file ||
+          $u.contains(terms[excluded[i]] || [], file)) {
+          valid = false;
+          break;
+        }
+      }
+
+      // if we have still a valid result we can add it to the result list
+      if (valid) {
+        results.push([filenames[file], titles[file], '', null, score]);
+      }
+    }
+    return results;
+  },
+
+  /**
+   * helper function to return a node containing the
+   * search summary for a given text. keywords is a list
+   * of stemmed words, hlwords is the list of normal, unstemmed
+   * words. the first one is used to find the occurance, the
+   * latter for highlighting it.
+   */
+  makeSearchSummary : function(text, keywords, hlwords) {
+    var textLower = text.toLowerCase();
+    var start = 0;
+    $.each(keywords, function() {
+      var i = textLower.indexOf(this.toLowerCase());
+      if (i > -1)
+        start = i;
+    });
+    start = Math.max(start - 120, 0);
+    var excerpt = ((start > 0) ? '...' : '') +
+      $.trim(text.substr(start, 240)) +
+      ((start + 240 - text.length) ? '...' : '');
+    var rv = $('<div class="context"></div>').text(excerpt);
+    $.each(hlwords, function() {
+      rv = rv.highlightText(this, 'highlighted');
+    });
+    return rv;
+  }
+};
+
+$(document).ready(function() {
+  Search.init();
+});
\ No newline at end of file
diff --git a/docs/build/html/_static/sidebar.js b/docs/build/html/_static/sidebar.js
new file mode 100644
index 00000000..874a890a
--- /dev/null
+++ b/docs/build/html/_static/sidebar.js
@@ -0,0 +1,159 @@
+/*
+ * sidebar.js
+ * ~~~~~~~~~~
+ *
+ * This script makes the Sphinx sidebar collapsible.
+ *
+ * .sphinxsidebar contains .sphinxsidebarwrapper.  This script adds
+ * in .sphixsidebar, after .sphinxsidebarwrapper, the #sidebarbutton
+ * used to collapse and expand the sidebar.
+ *
+ * When the sidebar is collapsed the .sphinxsidebarwrapper is hidden
+ * and the width of the sidebar and the margin-left of the document
+ * are decreased. When the sidebar is expanded the opposite happens.
+ * This script saves a per-browser/per-session cookie used to
+ * remember the position of the sidebar among the pages.
+ * Once the browser is closed the cookie is deleted and the position
+ * reset to the default (expanded).
+ *
+ * :copyright: Copyright 2007-2013 by the Sphinx team, see AUTHORS.
+ * :license: BSD, see LICENSE for details.
+ *
+ */
+
+$(function() {
+  
+  
+  
+  
+  
+  
+  
+
+  // global elements used by the functions.
+  // the 'sidebarbutton' element is defined as global after its
+  // creation, in the add_sidebar_button function
+  var bodywrapper = $('.bodywrapper');
+  var sidebar = $('.sphinxsidebar');
+  var sidebarwrapper = $('.sphinxsidebarwrapper');
+
+  // for some reason, the document has no sidebar; do not run into errors
+  if (!sidebar.length) return;
+
+  // original margin-left of the bodywrapper and width of the sidebar
+  // with the sidebar expanded
+  var bw_margin_expanded = bodywrapper.css('margin-left');
+  var ssb_width_expanded = sidebar.width();
+
+  // margin-left of the bodywrapper and width of the sidebar
+  // with the sidebar collapsed
+  var bw_margin_collapsed = '.8em';
+  var ssb_width_collapsed = '.8em';
+
+  // colors used by the current theme
+  var dark_color = $('.related').css('background-color');
+  var light_color = $('.document').css('background-color');
+
+  function sidebar_is_collapsed() {
+    return sidebarwrapper.is(':not(:visible)');
+  }
+
+  function toggle_sidebar() {
+    if (sidebar_is_collapsed())
+      expand_sidebar();
+    else
+      collapse_sidebar();
+  }
+
+  function collapse_sidebar() {
+    sidebarwrapper.hide();
+    sidebar.css('width', ssb_width_collapsed);
+    bodywrapper.css('margin-left', bw_margin_collapsed);
+    sidebarbutton.css({
+        'margin-left': '0',
+        'height': bodywrapper.height()
+    });
+    sidebarbutton.find('span').text('»');
+    sidebarbutton.attr('title', _('Expand sidebar'));
+    document.cookie = 'sidebar=collapsed';
+  }
+
+  function expand_sidebar() {
+    bodywrapper.css('margin-left', bw_margin_expanded);
+    sidebar.css('width', ssb_width_expanded);
+    sidebarwrapper.show();
+    sidebarbutton.css({
+        'margin-left': ssb_width_expanded-12,
+        'height': bodywrapper.height()
+    });
+    sidebarbutton.find('span').text('«');
+    sidebarbutton.attr('title', _('Collapse sidebar'));
+    document.cookie = 'sidebar=expanded';
+  }
+
+  function add_sidebar_button() {
+    sidebarwrapper.css({
+        'float': 'left',
+        'margin-right': '0',
+        'width': ssb_width_expanded - 28
+    });
+    // create the button
+    sidebar.append(
+        '<div id="sidebarbutton"><span>&laquo;</span></div>'
+    );
+    var sidebarbutton = $('#sidebarbutton');
+    light_color = sidebarbutton.css('background-color');
+    // find the height of the viewport to center the '<<' in the page
+    var viewport_height;
+    if (window.innerHeight)
+ 	  viewport_height = window.innerHeight;
+    else
+	  viewport_height = $(window).height();
+    sidebarbutton.find('span').css({
+        'display': 'block',
+        'margin-top': (viewport_height - sidebar.position().top - 20) / 2
+    });
+
+    sidebarbutton.click(toggle_sidebar);
+    sidebarbutton.attr('title', _('Collapse sidebar'));
+    sidebarbutton.css({
+        'color': '#FFFFFF',
+        'border-left': '1px solid ' + dark_color,
+        'font-size': '1.2em',
+        'cursor': 'pointer',
+        'height': bodywrapper.height(),
+        'padding-top': '1px',
+        'margin-left': ssb_width_expanded - 12
+    });
+
+    sidebarbutton.hover(
+      function () {
+          $(this).css('background-color', dark_color);
+      },
+      function () {
+          $(this).css('background-color', light_color);
+      }
+    );
+  }
+
+  function set_position_from_cookie() {
+    if (!document.cookie)
+      return;
+    var items = document.cookie.split(';');
+    for(var k=0; k<items.length; k++) {
+      var key_val = items[k].split('=');
+      var key = key_val[0].replace(/ /, "");  // strip leading spaces
+      if (key == 'sidebar') {
+        var value = key_val[1];
+        if ((value == 'collapsed') && (!sidebar_is_collapsed()))
+          collapse_sidebar();
+        else if ((value == 'expanded') && (sidebar_is_collapsed()))
+          expand_sidebar();
+      }
+    }
+  }
+
+  add_sidebar_button();
+  var sidebarbutton = $('#sidebarbutton');
+  set_position_from_cookie();
+});
\ No newline at end of file
diff --git a/docs/build/html/_static/underscore.js b/docs/build/html/_static/underscore.js
new file mode 100644
index 00000000..5b55f32b
--- /dev/null
+++ b/docs/build/html/_static/underscore.js
@@ -0,0 +1,31 @@
+// Underscore.js 1.3.1
+// (c) 2009-2012 Jeremy Ashkenas, DocumentCloud Inc.
+// Underscore is freely distributable under the MIT license.
+// Portions of Underscore are inspired or borrowed from Prototype,
+// Oliver Steele's Functional, and John Resig's Micro-Templating.
+// For all details and documentation:
+// http://documentcloud.github.com/underscore
+(function(){function q(a,c,d){if(a===c)return a!==0||1/a==1/c;if(a==null||c==null)return a===c;if(a._chain)a=a._wrapped;if(c._chain)c=c._wrapped;if(a.isEqual&&b.isFunction(a.isEqual))return a.isEqual(c);if(c.isEqual&&b.isFunction(c.isEqual))return c.isEqual(a);var e=l.call(a);if(e!=l.call(c))return false;switch(e){case "[object String]":return a==String(c);case "[object Number]":return a!=+a?c!=+c:a==0?1/a==1/c:a==+c;case "[object Date]":case "[object Boolean]":return+a==+c;case "[object RegExp]":return a.source==
+c.source&&a.global==c.global&&a.multiline==c.multiline&&a.ignoreCase==c.ignoreCase}if(typeof a!="object"||typeof c!="object")return false;for(var f=d.length;f--;)if(d[f]==a)return true;d.push(a);var f=0,g=true;if(e=="[object Array]"){if(f=a.length,g=f==c.length)for(;f--;)if(!(g=f in a==f in c&&q(a[f],c[f],d)))break}else{if("constructor"in a!="constructor"in c||a.constructor!=c.constructor)return false;for(var h in a)if(b.has(a,h)&&(f++,!(g=b.has(c,h)&&q(a[h],c[h],d))))break;if(g){for(h in c)if(b.has(c,
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+b.isArguments=function(a){return l.call(a)=="[object Arguments]"};if(!b.isArguments(arguments))b.isArguments=function(a){return!(!a||!b.has(a,"callee"))};b.isFunction=function(a){return l.call(a)=="[object Function]"};b.isString=function(a){return l.call(a)=="[object String]"};b.isNumber=function(a){return l.call(a)=="[object Number]"};b.isNaN=function(a){return a!==a};b.isBoolean=function(a){return a===true||a===false||l.call(a)=="[object Boolean]"};b.isDate=function(a){return l.call(a)=="[object Date]"};
+b.isRegExp=function(a){return l.call(a)=="[object RegExp]"};b.isNull=function(a){return a===null};b.isUndefined=function(a){return a===void 0};b.has=function(a,b){return I.call(a,b)};b.noConflict=function(){r._=G;return this};b.identity=function(a){return a};b.times=function(a,b,d){for(var e=0;e<a;e++)b.call(d,e)};b.escape=function(a){return(""+a).replace(/&/g,"&amp;").replace(/</g,"&lt;").replace(/>/g,"&gt;").replace(/"/g,"&quot;").replace(/'/g,"&#x27;").replace(/\//g,"&#x2F;")};b.mixin=function(a){j(b.functions(a),
+function(c){K(c,b[c]=a[c])})};var L=0;b.uniqueId=function(a){var b=L++;return a?a+b:b};b.templateSettings={evaluate:/<%([\s\S]+?)%>/g,interpolate:/<%=([\s\S]+?)%>/g,escape:/<%-([\s\S]+?)%>/g};var t=/.^/,u=function(a){return a.replace(/\\\\/g,"\\").replace(/\\'/g,"'")};b.template=function(a,c){var d=b.templateSettings,d="var __p=[],print=function(){__p.push.apply(__p,arguments);};with(obj||{}){__p.push('"+a.replace(/\\/g,"\\\\").replace(/'/g,"\\'").replace(d.escape||t,function(a,b){return"',_.escape("+
+u(b)+"),'"}).replace(d.interpolate||t,function(a,b){return"',"+u(b)+",'"}).replace(d.evaluate||t,function(a,b){return"');"+u(b).replace(/[\r\n\t]/g," ")+";__p.push('"}).replace(/\r/g,"\\r").replace(/\n/g,"\\n").replace(/\t/g,"\\t")+"');}return __p.join('');",e=new Function("obj","_",d);return c?e(c,b):function(a){return e.call(this,a,b)}};b.chain=function(a){return b(a).chain()};var m=function(a){this._wrapped=a};b.prototype=m.prototype;var v=function(a,c){return c?b(a).chain():a},K=function(a,c){m.prototype[a]=
+function(){var a=i.call(arguments);H.call(a,this._wrapped);return v(c.apply(b,a),this._chain)}};b.mixin(b);j("pop,push,reverse,shift,sort,splice,unshift".split(","),function(a){var b=k[a];m.prototype[a]=function(){var d=this._wrapped;b.apply(d,arguments);var e=d.length;(a=="shift"||a=="splice")&&e===0&&delete d[0];return v(d,this._chain)}});j(["concat","join","slice"],function(a){var b=k[a];m.prototype[a]=function(){return v(b.apply(this._wrapped,arguments),this._chain)}});m.prototype.chain=function(){this._chain=
+true;return this};m.prototype.value=function(){return this._wrapped}}).call(this);
diff --git a/docs/build/html/_static/up-pressed.png b/docs/build/html/_static/up-pressed.png
new file mode 100644
index 00000000..8bd587af
Binary files /dev/null and b/docs/build/html/_static/up-pressed.png differ
diff --git a/docs/build/html/_static/up.png b/docs/build/html/_static/up.png
new file mode 100644
index 00000000..b9462568
Binary files /dev/null and b/docs/build/html/_static/up.png differ
diff --git a/docs/build/html/_static/websupport.js b/docs/build/html/_static/websupport.js
new file mode 100644
index 00000000..19fcda56
--- /dev/null
+++ b/docs/build/html/_static/websupport.js
@@ -0,0 +1,808 @@
+/*
+ * websupport.js
+ * ~~~~~~~~~~~~~
+ *
+ * sphinx.websupport utilties for all documentation.
+ *
+ * :copyright: Copyright 2007-2013 by the Sphinx team, see AUTHORS.
+ * :license: BSD, see LICENSE for details.
+ *
+ */
+
+(function($) {
+  $.fn.autogrow = function() {
+    return this.each(function() {
+    var textarea = this;
+
+    $.fn.autogrow.resize(textarea);
+
+    $(textarea)
+      .focus(function() {
+        textarea.interval = setInterval(function() {
+          $.fn.autogrow.resize(textarea);
+        }, 500);
+      })
+      .blur(function() {
+        clearInterval(textarea.interval);
+      });
+    });
+  };
+
+  $.fn.autogrow.resize = function(textarea) {
+    var lineHeight = parseInt($(textarea).css('line-height'), 10);
+    var lines = textarea.value.split('\n');
+    var columns = textarea.cols;
+    var lineCount = 0;
+    $.each(lines, function() {
+      lineCount += Math.ceil(this.length / columns) || 1;
+    });
+    var height = lineHeight * (lineCount + 1);
+    $(textarea).css('height', height);
+  };
+})(jQuery);
+
+(function($) {
+  var comp, by;
+
+  function init() {
+    initEvents();
+    initComparator();
+  }
+
+  function initEvents() {
+    $('a.comment-close').live("click", function(event) {
+      event.preventDefault();
+      hide($(this).attr('id').substring(2));
+    });
+    $('a.vote').live("click", function(event) {
+      event.preventDefault();
+      handleVote($(this));
+    });
+    $('a.reply').live("click", function(event) {
+      event.preventDefault();
+      openReply($(this).attr('id').substring(2));
+    });
+    $('a.close-reply').live("click", function(event) {
+      event.preventDefault();
+      closeReply($(this).attr('id').substring(2));
+    });
+    $('a.sort-option').live("click", function(event) {
+      event.preventDefault();
+      handleReSort($(this));
+    });
+    $('a.show-proposal').live("click", function(event) {
+      event.preventDefault();
+      showProposal($(this).attr('id').substring(2));
+    });
+    $('a.hide-proposal').live("click", function(event) {
+      event.preventDefault();
+      hideProposal($(this).attr('id').substring(2));
+    });
+    $('a.show-propose-change').live("click", function(event) {
+      event.preventDefault();
+      showProposeChange($(this).attr('id').substring(2));
+    });
+    $('a.hide-propose-change').live("click", function(event) {
+      event.preventDefault();
+      hideProposeChange($(this).attr('id').substring(2));
+    });
+    $('a.accept-comment').live("click", function(event) {
+      event.preventDefault();
+      acceptComment($(this).attr('id').substring(2));
+    });
+    $('a.delete-comment').live("click", function(event) {
+      event.preventDefault();
+      deleteComment($(this).attr('id').substring(2));
+    });
+    $('a.comment-markup').live("click", function(event) {
+      event.preventDefault();
+      toggleCommentMarkupBox($(this).attr('id').substring(2));
+    });
+  }
+
+  /**
+   * Set comp, which is a comparator function used for sorting and
+   * inserting comments into the list.
+   */
+  function setComparator() {
+    // If the first three letters are "asc", sort in ascending order
+    // and remove the prefix.
+    if (by.substring(0,3) == 'asc') {
+      var i = by.substring(3);
+      comp = function(a, b) { return a[i] - b[i]; };
+    } else {
+      // Otherwise sort in descending order.
+      comp = function(a, b) { return b[by] - a[by]; };
+    }
+
+    // Reset link styles and format the selected sort option.
+    $('a.sel').attr('href', '#').removeClass('sel');
+    $('a.by' + by).removeAttr('href').addClass('sel');
+  }
+
+  /**
+   * Create a comp function. If the user has preferences stored in
+   * the sortBy cookie, use those, otherwise use the default.
+   */
+  function initComparator() {
+    by = 'rating'; // Default to sort by rating.
+    // If the sortBy cookie is set, use that instead.
+    if (document.cookie.length > 0) {
+      var start = document.cookie.indexOf('sortBy=');
+      if (start != -1) {
+        start = start + 7;
+        var end = document.cookie.indexOf(";", start);
+        if (end == -1) {
+          end = document.cookie.length;
+          by = unescape(document.cookie.substring(start, end));
+        }
+      }
+    }
+    setComparator();
+  }
+
+  /**
+   * Show a comment div.
+   */
+  function show(id) {
+    $('#ao' + id).hide();
+    $('#ah' + id).show();
+    var context = $.extend({id: id}, opts);
+    var popup = $(renderTemplate(popupTemplate, context)).hide();
+    popup.find('textarea[name="proposal"]').hide();
+    popup.find('a.by' + by).addClass('sel');
+    var form = popup.find('#cf' + id);
+    form.submit(function(event) {
+      event.preventDefault();
+      addComment(form);
+    });
+    $('#s' + id).after(popup);
+    popup.slideDown('fast', function() {
+      getComments(id);
+    });
+  }
+
+  /**
+   * Hide a comment div.
+   */
+  function hide(id) {
+    $('#ah' + id).hide();
+    $('#ao' + id).show();
+    var div = $('#sc' + id);
+    div.slideUp('fast', function() {
+      div.remove();
+    });
+  }
+
+  /**
+   * Perform an ajax request to get comments for a node
+   * and insert the comments into the comments tree.
+   */
+  function getComments(id) {
+    $.ajax({
+     type: 'GET',
+     url: opts.getCommentsURL,
+     data: {node: id},
+     success: function(data, textStatus, request) {
+       var ul = $('#cl' + id);
+       var speed = 100;
+       $('#cf' + id)
+         .find('textarea[name="proposal"]')
+         .data('source', data.source);
+
+       if (data.comments.length === 0) {
+         ul.html('<li>No comments yet.</li>');
+         ul.data('empty', true);
+       } else {
+         // If there are comments, sort them and put them in the list.
+         var comments = sortComments(data.comments);
+         speed = data.comments.length * 100;
+         appendComments(comments, ul);
+         ul.data('empty', false);
+       }
+       $('#cn' + id).slideUp(speed + 200);
+       ul.slideDown(speed);
+     },
+     error: function(request, textStatus, error) {
+       showError('Oops, there was a problem retrieving the comments.');
+     },
+     dataType: 'json'
+    });
+  }
+
+  /**
+   * Add a comment via ajax and insert the comment into the comment tree.
+   */
+  function addComment(form) {
+    var node_id = form.find('input[name="node"]').val();
+    var parent_id = form.find('input[name="parent"]').val();
+    var text = form.find('textarea[name="comment"]').val();
+    var proposal = form.find('textarea[name="proposal"]').val();
+
+    if (text == '') {
+      showError('Please enter a comment.');
+      return;
+    }
+
+    // Disable the form that is being submitted.
+    form.find('textarea,input').attr('disabled', 'disabled');
+
+    // Send the comment to the server.
+    $.ajax({
+      type: "POST",
+      url: opts.addCommentURL,
+      dataType: 'json',
+      data: {
+        node: node_id,
+        parent: parent_id,
+        text: text,
+        proposal: proposal
+      },
+      success: function(data, textStatus, error) {
+        // Reset the form.
+        if (node_id) {
+          hideProposeChange(node_id);
+        }
+        form.find('textarea')
+          .val('')
+          .add(form.find('input'))
+          .removeAttr('disabled');
+	var ul = $('#cl' + (node_id || parent_id));
+        if (ul.data('empty')) {
+          $(ul).empty();
+          ul.data('empty', false);
+        }
+        insertComment(data.comment);
+        var ao = $('#ao' + node_id);
+        ao.find('img').attr({'src': opts.commentBrightImage});
+        if (node_id) {
+          // if this was a "root" comment, remove the commenting box
+          // (the user can get it back by reopening the comment popup)
+          $('#ca' + node_id).slideUp();
+        }
+      },
+      error: function(request, textStatus, error) {
+        form.find('textarea,input').removeAttr('disabled');
+        showError('Oops, there was a problem adding the comment.');
+      }
+    });
+  }
+
+  /**
+   * Recursively append comments to the main comment list and children
+   * lists, creating the comment tree.
+   */
+  function appendComments(comments, ul) {
+    $.each(comments, function() {
+      var div = createCommentDiv(this);
+      ul.append($(document.createElement('li')).html(div));
+      appendComments(this.children, div.find('ul.comment-children'));
+      // To avoid stagnating data, don't store the comments children in data.
+      this.children = null;
+      div.data('comment', this);
+    });
+  }
+
+  /**
+   * After adding a new comment, it must be inserted in the correct
+   * location in the comment tree.
+   */
+  function insertComment(comment) {
+    var div = createCommentDiv(comment);
+
+    // To avoid stagnating data, don't store the comments children in data.
+    comment.children = null;
+    div.data('comment', comment);
+
+    var ul = $('#cl' + (comment.node || comment.parent));
+    var siblings = getChildren(ul);
+
+    var li = $(document.createElement('li'));
+    li.hide();
+
+    // Determine where in the parents children list to insert this comment.
+    for(i=0; i < siblings.length; i++) {
+      if (comp(comment, siblings[i]) <= 0) {
+        $('#cd' + siblings[i].id)
+          .parent()
+          .before(li.html(div));
+        li.slideDown('fast');
+        return;
+      }
+    }
+
+    // If we get here, this comment rates lower than all the others,
+    // or it is the only comment in the list.
+    ul.append(li.html(div));
+    li.slideDown('fast');
+  }
+
+  function acceptComment(id) {
+    $.ajax({
+      type: 'POST',
+      url: opts.acceptCommentURL,
+      data: {id: id},
+      success: function(data, textStatus, request) {
+        $('#cm' + id).fadeOut('fast');
+        $('#cd' + id).removeClass('moderate');
+      },
+      error: function(request, textStatus, error) {
+        showError('Oops, there was a problem accepting the comment.');
+      }
+    });
+  }
+
+  function deleteComment(id) {
+    $.ajax({
+      type: 'POST',
+      url: opts.deleteCommentURL,
+      data: {id: id},
+      success: function(data, textStatus, request) {
+        var div = $('#cd' + id);
+        if (data == 'delete') {
+          // Moderator mode: remove the comment and all children immediately
+          div.slideUp('fast', function() {
+            div.remove();
+          });
+          return;
+        }
+        // User mode: only mark the comment as deleted
+        div
+          .find('span.user-id:first')
+          .text('[deleted]').end()
+          .find('div.comment-text:first')
+          .text('[deleted]').end()
+          .find('#cm' + id + ', #dc' + id + ', #ac' + id + ', #rc' + id +
+                ', #sp' + id + ', #hp' + id + ', #cr' + id + ', #rl' + id)
+          .remove();
+        var comment = div.data('comment');
+        comment.username = '[deleted]';
+        comment.text = '[deleted]';
+        div.data('comment', comment);
+      },
+      error: function(request, textStatus, error) {
+        showError('Oops, there was a problem deleting the comment.');
+      }
+    });
+  }
+
+  function showProposal(id) {
+    $('#sp' + id).hide();
+    $('#hp' + id).show();
+    $('#pr' + id).slideDown('fast');
+  }
+
+  function hideProposal(id) {
+    $('#hp' + id).hide();
+    $('#sp' + id).show();
+    $('#pr' + id).slideUp('fast');
+  }
+
+  function showProposeChange(id) {
+    $('#pc' + id).hide();
+    $('#hc' + id).show();
+    var textarea = $('#pt' + id);
+    textarea.val(textarea.data('source'));
+    $.fn.autogrow.resize(textarea[0]);
+    textarea.slideDown('fast');
+  }
+
+  function hideProposeChange(id) {
+    $('#hc' + id).hide();
+    $('#pc' + id).show();
+    var textarea = $('#pt' + id);
+    textarea.val('').removeAttr('disabled');
+    textarea.slideUp('fast');
+  }
+
+  function toggleCommentMarkupBox(id) {
+    $('#mb' + id).toggle();
+  }
+
+  /** Handle when the user clicks on a sort by link. */
+  function handleReSort(link) {
+    var classes = link.attr('class').split(/\s+/);
+    for (var i=0; i<classes.length; i++) {
+      if (classes[i] != 'sort-option') {
+	by = classes[i].substring(2);
+      }
+    }
+    setComparator();
+    // Save/update the sortBy cookie.
+    var expiration = new Date();
+    expiration.setDate(expiration.getDate() + 365);
+    document.cookie= 'sortBy=' + escape(by) +
+                     ';expires=' + expiration.toUTCString();
+    $('ul.comment-ul').each(function(index, ul) {
+      var comments = getChildren($(ul), true);
+      comments = sortComments(comments);
+      appendComments(comments, $(ul).empty());
+    });
+  }
+
+  /**
+   * Function to process a vote when a user clicks an arrow.
+   */
+  function handleVote(link) {
+    if (!opts.voting) {
+      showError("You'll need to login to vote.");
+      return;
+    }
+
+    var id = link.attr('id');
+    if (!id) {
+      // Didn't click on one of the voting arrows.
+      return;
+    }
+    // If it is an unvote, the new vote value is 0,
+    // Otherwise it's 1 for an upvote, or -1 for a downvote.
+    var value = 0;
+    if (id.charAt(1) != 'u') {
+      value = id.charAt(0) == 'u' ? 1 : -1;
+    }
+    // The data to be sent to the server.
+    var d = {
+      comment_id: id.substring(2),
+      value: value
+    };
+
+    // Swap the vote and unvote links.
+    link.hide();
+    $('#' + id.charAt(0) + (id.charAt(1) == 'u' ? 'v' : 'u') + d.comment_id)
+      .show();
+
+    // The div the comment is displayed in.
+    var div = $('div#cd' + d.comment_id);
+    var data = div.data('comment');
+
+    // If this is not an unvote, and the other vote arrow has
+    // already been pressed, unpress it.
+    if ((d.value !== 0) && (data.vote === d.value * -1)) {
+      $('#' + (d.value == 1 ? 'd' : 'u') + 'u' + d.comment_id).hide();
+      $('#' + (d.value == 1 ? 'd' : 'u') + 'v' + d.comment_id).show();
+    }
+
+    // Update the comments rating in the local data.
+    data.rating += (data.vote === 0) ? d.value : (d.value - data.vote);
+    data.vote = d.value;
+    div.data('comment', data);
+
+    // Change the rating text.
+    div.find('.rating:first')
+      .text(data.rating + ' point' + (data.rating == 1 ? '' : 's'));
+
+    // Send the vote information to the server.
+    $.ajax({
+      type: "POST",
+      url: opts.processVoteURL,
+      data: d,
+      error: function(request, textStatus, error) {
+        showError('Oops, there was a problem casting that vote.');
+      }
+    });
+  }
+
+  /**
+   * Open a reply form used to reply to an existing comment.
+   */
+  function openReply(id) {
+    // Swap out the reply link for the hide link
+    $('#rl' + id).hide();
+    $('#cr' + id).show();
+
+    // Add the reply li to the children ul.
+    var div = $(renderTemplate(replyTemplate, {id: id})).hide();
+    $('#cl' + id)
+      .prepend(div)
+      // Setup the submit handler for the reply form.
+      .find('#rf' + id)
+      .submit(function(event) {
+        event.preventDefault();
+        addComment($('#rf' + id));
+        closeReply(id);
+      })
+      .find('input[type=button]')
+      .click(function() {
+        closeReply(id);
+      });
+    div.slideDown('fast', function() {
+      $('#rf' + id).find('textarea').focus();
+    });
+  }
+
+  /**
+   * Close the reply form opened with openReply.
+   */
+  function closeReply(id) {
+    // Remove the reply div from the DOM.
+    $('#rd' + id).slideUp('fast', function() {
+      $(this).remove();
+    });
+
+    // Swap out the hide link for the reply link
+    $('#cr' + id).hide();
+    $('#rl' + id).show();
+  }
+
+  /**
+   * Recursively sort a tree of comments using the comp comparator.
+   */
+  function sortComments(comments) {
+    comments.sort(comp);
+    $.each(comments, function() {
+      this.children = sortComments(this.children);
+    });
+    return comments;
+  }
+
+  /**
+   * Get the children comments from a ul. If recursive is true,
+   * recursively include childrens' children.
+   */
+  function getChildren(ul, recursive) {
+    var children = [];
+    ul.children().children("[id^='cd']")
+      .each(function() {
+        var comment = $(this).data('comment');
+        if (recursive)
+          comment.children = getChildren($(this).find('#cl' + comment.id), true);
+        children.push(comment);
+      });
+    return children;
+  }
+
+  /** Create a div to display a comment in. */
+  function createCommentDiv(comment) {
+    if (!comment.displayed && !opts.moderator) {
+      return $('<div class="moderate">Thank you!  Your comment will show up '
+               + 'once it is has been approved by a moderator.</div>');
+    }
+    // Prettify the comment rating.
+    comment.pretty_rating = comment.rating + ' point' +
+      (comment.rating == 1 ? '' : 's');
+    // Make a class (for displaying not yet moderated comments differently)
+    comment.css_class = comment.displayed ? '' : ' moderate';
+    // Create a div for this comment.
+    var context = $.extend({}, opts, comment);
+    var div = $(renderTemplate(commentTemplate, context));
+
+    // If the user has voted on this comment, highlight the correct arrow.
+    if (comment.vote) {
+      var direction = (comment.vote == 1) ? 'u' : 'd';
+      div.find('#' + direction + 'v' + comment.id).hide();
+      div.find('#' + direction + 'u' + comment.id).show();
+    }
+
+    if (opts.moderator || comment.text != '[deleted]') {
+      div.find('a.reply').show();
+      if (comment.proposal_diff)
+        div.find('#sp' + comment.id).show();
+      if (opts.moderator && !comment.displayed)
+        div.find('#cm' + comment.id).show();
+      if (opts.moderator || (opts.username == comment.username))
+        div.find('#dc' + comment.id).show();
+    }
+    return div;
+  }
+
+  /**
+   * A simple template renderer. Placeholders such as <%id%> are replaced
+   * by context['id'] with items being escaped. Placeholders such as <#id#>
+   * are not escaped.
+   */
+  function renderTemplate(template, context) {
+    var esc = $(document.createElement('div'));
+
+    function handle(ph, escape) {
+      var cur = context;
+      $.each(ph.split('.'), function() {
+        cur = cur[this];
+      });
+      return escape ? esc.text(cur || "").html() : cur;
+    }
+
+    return template.replace(/<([%#])([\w\.]*)\1>/g, function() {
+      return handle(arguments[2], arguments[1] == '%' ? true : false);
+    });
+  }
+
+  /** Flash an error message briefly. */
+  function showError(message) {
+    $(document.createElement('div')).attr({'class': 'popup-error'})
+      .append($(document.createElement('div'))
+               .attr({'class': 'error-message'}).text(message))
+      .appendTo('body')
+      .fadeIn("slow")
+      .delay(2000)
+      .fadeOut("slow");
+  }
+
+  /** Add a link the user uses to open the comments popup. */
+  $.fn.comment = function() {
+    return this.each(function() {
+      var id = $(this).attr('id').substring(1);
+      var count = COMMENT_METADATA[id];
+      var title = count + ' comment' + (count == 1 ? '' : 's');
+      var image = count > 0 ? opts.commentBrightImage : opts.commentImage;
+      var addcls = count == 0 ? ' nocomment' : '';
+      $(this)
+        .append(
+          $(document.createElement('a')).attr({
+            href: '#',
+            'class': 'sphinx-comment-open' + addcls,
+            id: 'ao' + id
+          })
+            .append($(document.createElement('img')).attr({
+              src: image,
+              alt: 'comment',
+              title: title
+            }))
+            .click(function(event) {
+              event.preventDefault();
+              show($(this).attr('id').substring(2));
+            })
+        )
+        .append(
+          $(document.createElement('a')).attr({
+            href: '#',
+            'class': 'sphinx-comment-close hidden',
+            id: 'ah' + id
+          })
+            .append($(document.createElement('img')).attr({
+              src: opts.closeCommentImage,
+              alt: 'close',
+              title: 'close'
+            }))
+            .click(function(event) {
+              event.preventDefault();
+              hide($(this).attr('id').substring(2));
+            })
+        );
+    });
+  };
+
+  var opts = {
+    processVoteURL: '/_process_vote',
+    addCommentURL: '/_add_comment',
+    getCommentsURL: '/_get_comments',
+    acceptCommentURL: '/_accept_comment',
+    deleteCommentURL: '/_delete_comment',
+    commentImage: '/static/_static/comment.png',
+    closeCommentImage: '/static/_static/comment-close.png',
+    loadingImage: '/static/_static/ajax-loader.gif',
+    commentBrightImage: '/static/_static/comment-bright.png',
+    upArrow: '/static/_static/up.png',
+    downArrow: '/static/_static/down.png',
+    upArrowPressed: '/static/_static/up-pressed.png',
+    downArrowPressed: '/static/_static/down-pressed.png',
+    voting: false,
+    moderator: false
+  };
+
+  if (typeof COMMENT_OPTIONS != "undefined") {
+    opts = jQuery.extend(opts, COMMENT_OPTIONS);
+  }
+
+  var popupTemplate = '\
+    <div class="sphinx-comments" id="sc<%id%>">\
+      <p class="sort-options">\
+        Sort by:\
+        <a href="#" class="sort-option byrating">best rated</a>\
+        <a href="#" class="sort-option byascage">newest</a>\
+        <a href="#" class="sort-option byage">oldest</a>\
+      </p>\
+      <div class="comment-header">Comments</div>\
+      <div class="comment-loading" id="cn<%id%>">\
+        loading comments... <img src="<%loadingImage%>" alt="" /></div>\
+      <ul id="cl<%id%>" class="comment-ul"></ul>\
+      <div id="ca<%id%>">\
+      <p class="add-a-comment">Add a comment\
+        (<a href="#" class="comment-markup" id="ab<%id%>">markup</a>):</p>\
+      <div class="comment-markup-box" id="mb<%id%>">\
+        reStructured text markup: <i>*emph*</i>, <b>**strong**</b>, \
+        <tt>``code``</tt>, \
+        code blocks: <tt>::</tt> and an indented block after blank line</div>\
+      <form method="post" id="cf<%id%>" class="comment-form" action="">\
+        <textarea name="comment" cols="80"></textarea>\
+        <p class="propose-button">\
+          <a href="#" id="pc<%id%>" class="show-propose-change">\
+            Propose a change &#9657;\
+          </a>\
+          <a href="#" id="hc<%id%>" class="hide-propose-change">\
+            Propose a change &#9663;\
+          </a>\
+        </p>\
+        <textarea name="proposal" id="pt<%id%>" cols="80"\
+                  spellcheck="false"></textarea>\
+        <input type="submit" value="Add comment" />\
+        <input type="hidden" name="node" value="<%id%>" />\
+        <input type="hidden" name="parent" value="" />\
+      </form>\
+      </div>\
+    </div>';
+
+  var commentTemplate = '\
+    <div id="cd<%id%>" class="sphinx-comment<%css_class%>">\
+      <div class="vote">\
+        <div class="arrow">\
+          <a href="#" id="uv<%id%>" class="vote" title="vote up">\
+            <img src="<%upArrow%>" />\
+          </a>\
+          <a href="#" id="uu<%id%>" class="un vote" title="vote up">\
+            <img src="<%upArrowPressed%>" />\
+          </a>\
+        </div>\
+        <div class="arrow">\
+          <a href="#" id="dv<%id%>" class="vote" title="vote down">\
+            <img src="<%downArrow%>" id="da<%id%>" />\
+          </a>\
+          <a href="#" id="du<%id%>" class="un vote" title="vote down">\
+            <img src="<%downArrowPressed%>" />\
+          </a>\
+        </div>\
+      </div>\
+      <div class="comment-content">\
+        <p class="tagline comment">\
+          <span class="user-id"><%username%></span>\
+          <span class="rating"><%pretty_rating%></span>\
+          <span class="delta"><%time.delta%></span>\
+        </p>\
+        <div class="comment-text comment"><#text#></div>\
+        <p class="comment-opts comment">\
+          <a href="#" class="reply hidden" id="rl<%id%>">reply &#9657;</a>\
+          <a href="#" class="close-reply" id="cr<%id%>">reply &#9663;</a>\
+          <a href="#" id="sp<%id%>" class="show-proposal">proposal &#9657;</a>\
+          <a href="#" id="hp<%id%>" class="hide-proposal">proposal &#9663;</a>\
+          <a href="#" id="dc<%id%>" class="delete-comment hidden">delete</a>\
+          <span id="cm<%id%>" class="moderation hidden">\
+            <a href="#" id="ac<%id%>" class="accept-comment">accept</a>\
+          </span>\
+        </p>\
+        <pre class="proposal" id="pr<%id%>">\
+<#proposal_diff#>\
+        </pre>\
+          <ul class="comment-children" id="cl<%id%>"></ul>\
+        </div>\
+        <div class="clearleft"></div>\
+      </div>\
+    </div>';
+
+  var replyTemplate = '\
+    <li>\
+      <div class="reply-div" id="rd<%id%>">\
+        <form id="rf<%id%>">\
+          <textarea name="comment" cols="80"></textarea>\
+          <input type="submit" value="Add reply" />\
+          <input type="button" value="Cancel" />\
+          <input type="hidden" name="parent" value="<%id%>" />\
+          <input type="hidden" name="node" value="" />\
+        </form>\
+      </div>\
+    </li>';
+
+  $(document).ready(function() {
+    init();
+  });
+})(jQuery);
+
+$(document).ready(function() {
+  // add comment anchors for all paragraphs that are commentable
+  $('.sphinx-has-comment').comment();
+
+  // highlight search words in search results
+  $("div.context").each(function() {
+    var params = $.getQueryParameters();
+    var terms = (params.q) ? params.q[0].split(/\s+/) : [];
+    var result = $(this);
+    $.each(terms, function() {
+      result.highlightText(this.toLowerCase(), 'highlighted');
+    });
+  });
+
+  // directly open comment window if requested
+  var anchor = document.location.hash;
+  if (anchor.substring(0, 9) == '#comment-') {
+    $('#ao' + anchor.substring(9)).click();
+    document.location.hash = '#s' + anchor.substring(9);
+  }
+});
diff --git a/docs/build/html/genindex.html b/docs/build/html/genindex.html
new file mode 100644
index 00000000..ce8b4ce1
--- /dev/null
+++ b/docs/build/html/genindex.html
@@ -0,0 +1,175 @@
+
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
+  "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
+
+
+<html xmlns="http://www.w3.org/1999/xhtml">
+  <head>
+    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
+    
+    <title>Index &mdash; PyDruid 0.2.0 documentation</title>
+    
+    <link rel="stylesheet" href="_static/default.css" type="text/css" />
+    <link rel="stylesheet" href="_static/pygments.css" type="text/css" />
+    
+    <script type="text/javascript">
+      var DOCUMENTATION_OPTIONS = {
+        URL_ROOT:    './',
+        VERSION:     '0.2.0',
+        COLLAPSE_INDEX: false,
+        FILE_SUFFIX: '.html',
+        HAS_SOURCE:  true
+      };
+    </script>
+    <script type="text/javascript" src="_static/jquery.js"></script>
+    <script type="text/javascript" src="_static/underscore.js"></script>
+    <script type="text/javascript" src="_static/doctools.js"></script>
+    <link rel="top" title="PyDruid 0.2.0 documentation" href="index.html" /> 
+  </head>
+  <body>
+    <div class="related">
+      <h3>Navigation</h3>
+      <ul>
+        <li class="right" style="margin-right: 10px">
+          <a href="#" title="General Index"
+             accesskey="I">index</a></li>
+        <li class="right" >
+          <a href="py-modindex.html" title="Python Module Index"
+             >modules</a> |</li>
+        <li><a href="index.html">PyDruid 0.2.0 documentation</a> &raquo;</li> 
+      </ul>
+    </div>  
+
+    <div class="document">
+      <div class="documentwrapper">
+        <div class="bodywrapper">
+          <div class="body">
+            
+
+<h1 id="index">Index</h1>
+
+<div class="genindex-jumpbox">
+ <a href="#E"><strong>E</strong></a>
+ | <a href="#G"><strong>G</strong></a>
+ | <a href="#P"><strong>P</strong></a>
+ | <a href="#S"><strong>S</strong></a>
+ | <a href="#T"><strong>T</strong></a>
+ 
+</div>
+<h2 id="E">E</h2>
+<table style="width: 100%" class="indextable genindextable"><tr>
+  <td style="width: 33%" valign="top"><dl>
+      
+  <dt><a href="index.html#client.PyDruid.export_pandas">export_pandas() (client.PyDruid method)</a>
+  </dt>
+
+  </dl></td>
+  <td style="width: 33%" valign="top"><dl>
+      
+  <dt><a href="index.html#client.PyDruid.export_tsv">export_tsv() (client.PyDruid method)</a>
+  </dt>
+
+  </dl></td>
+</tr></table>
+
+<h2 id="G">G</h2>
+<table style="width: 100%" class="indextable genindextable"><tr>
+  <td style="width: 33%" valign="top"><dl>
+      
+  <dt><a href="index.html#client.PyDruid.groupby">groupby() (client.PyDruid method)</a>
+  </dt>
+
+  </dl></td>
+</tr></table>
+
+<h2 id="P">P</h2>
+<table style="width: 100%" class="indextable genindextable"><tr>
+  <td style="width: 33%" valign="top"><dl>
+      
+  <dt><a href="index.html#client.PyDruid">PyDruid (class in client)</a>
+  </dt>
+
+  </dl></td>
+  <td style="width: 33%" valign="top"><dl>
+      
+  <dt><a href="index.html#module-pydruid">pydruid (module)</a>
+  </dt>
+
+  </dl></td>
+</tr></table>
+
+<h2 id="S">S</h2>
+<table style="width: 100%" class="indextable genindextable"><tr>
+  <td style="width: 33%" valign="top"><dl>
+      
+  <dt><a href="index.html#client.PyDruid.segment_metadata">segment_metadata() (client.PyDruid method)</a>
+  </dt>
+
+  </dl></td>
+</tr></table>
+
+<h2 id="T">T</h2>
+<table style="width: 100%" class="indextable genindextable"><tr>
+  <td style="width: 33%" valign="top"><dl>
+      
+  <dt><a href="index.html#client.PyDruid.time_boundary">time_boundary() (client.PyDruid method)</a>
+  </dt>
+
+      
+  <dt><a href="index.html#client.PyDruid.timeseries">timeseries() (client.PyDruid method)</a>
+  </dt>
+
+  </dl></td>
+  <td style="width: 33%" valign="top"><dl>
+      
+  <dt><a href="index.html#client.PyDruid.topn">topn() (client.PyDruid method)</a>
+  </dt>
+
+  </dl></td>
+</tr></table>
+
+
+
+          </div>
+        </div>
+      </div>
+      <div class="sphinxsidebar">
+        <div class="sphinxsidebarwrapper">
+
+   
+
+<div id="searchbox" style="display: none">
+  <h3>Quick search</h3>
+    <form class="search" action="search.html" method="get">
+      <input type="text" name="q" />
+      <input type="submit" value="Go" />
+      <input type="hidden" name="check_keywords" value="yes" />
+      <input type="hidden" name="area" value="default" />
+    </form>
+    <p class="searchtip" style="font-size: 90%">
+    Enter search terms or a module, class or function name.
+    </p>
+</div>
+<script type="text/javascript">$('#searchbox').show(0);</script>
+        </div>
+      </div>
+      <div class="clearer"></div>
+    </div>
+    <div class="related">
+      <h3>Navigation</h3>
+      <ul>
+        <li class="right" style="margin-right: 10px">
+          <a href="#" title="General Index"
+             >index</a></li>
+        <li class="right" >
+          <a href="py-modindex.html" title="Python Module Index"
+             >modules</a> |</li>
+        <li><a href="index.html">PyDruid 0.2.0 documentation</a> &raquo;</li> 
+      </ul>
+    </div>
+    <div class="footer">
+        &copy; Copyright 2014, Deep Ganguli.
+      Created using <a href="http://sphinx-doc.org/">Sphinx</a> 1.2.1.
+    </div>
+  </body>
+</html>
\ No newline at end of file
diff --git a/docs/build/html/index.html b/docs/build/html/index.html
new file mode 100644
index 00000000..cabb0f77
--- /dev/null
+++ b/docs/build/html/index.html
@@ -0,0 +1,614 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
+  "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
+
+
+<html xmlns="http://www.w3.org/1999/xhtml">
+  <head>
+    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
+    
+    <title>Welcome to PyDruid’s documentation! &mdash; PyDruid 0.2.0 documentation</title>
+    
+    <link rel="stylesheet" href="_static/default.css" type="text/css" />
+    <link rel="stylesheet" href="_static/pygments.css" type="text/css" />
+    
+    <script type="text/javascript">
+      var DOCUMENTATION_OPTIONS = {
+        URL_ROOT:    './',
+        VERSION:     '0.2.0',
+        COLLAPSE_INDEX: false,
+        FILE_SUFFIX: '.html',
+        HAS_SOURCE:  true
+      };
+    </script>
+    <script type="text/javascript" src="_static/jquery.js"></script>
+    <script type="text/javascript" src="_static/underscore.js"></script>
+    <script type="text/javascript" src="_static/doctools.js"></script>
+    <link rel="top" title="PyDruid 0.2.0 documentation" href="#" /> 
+  </head>
+  <body>
+    <div class="related">
+      <h3>Navigation</h3>
+      <ul>
+        <li class="right" style="margin-right: 10px">
+          <a href="genindex.html" title="General Index"
+             accesskey="I">index</a></li>
+        <li class="right" >
+          <a href="py-modindex.html" title="Python Module Index"
+             >modules</a> |</li>
+        <li><a href="#">PyDruid 0.2.0 documentation</a> &raquo;</li> 
+      </ul>
+    </div>  
+
+    <div class="document">
+      <div class="documentwrapper">
+        <div class="bodywrapper">
+          <div class="body">
+            
+  <div class="section" id="welcome-to-pydruid-s-documentation">
+<h1>Welcome to PyDruid&#8217;s documentation!<a class="headerlink" href="#welcome-to-pydruid-s-documentation" title="Permalink to this headline">¶</a></h1>
+<p>Contents:</p>
+<div class="toctree-wrapper compound">
+<ul class="simple">
+</ul>
+</div>
+<span class="target" id="module-pydruid"></span><dl class="class">
+<dt id="client.PyDruid">
+<em class="property">class </em><tt class="descclassname">client.</tt><tt class="descname">PyDruid</tt><big>(</big><em>url</em>, <em>endpoint</em><big>)</big><a class="headerlink" href="#client.PyDruid" title="Permalink to this definition">¶</a></dt>
+<dd><p>PyDruid exposes a simple API for creating and executing Druid queries. PyDruid also exposes
+a method for exporting query results into pandas.DataFrame objects for subsequent analysis
+with the python scientific computing stack, or simply exporting query results to a TSV file
+for analysis with your favorite tool, e.g., R, Julia, Matlab, Excel.</p>
+<table class="docutils field-list" frame="void" rules="none">
+<col class="field-name" />
+<col class="field-body" />
+<tbody valign="top">
+<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
+<li><strong>url</strong> (<em>str</em>) &#8211; URL of Bard node in the Druid cluster</li>
+<li><strong>endpoint</strong> (<em>str</em>) &#8211; Endpoint that Bard listens for queries on</li>
+</ul>
+</td>
+</tr>
+<tr class="field-even field"><th class="field-name">Variables:</th><td class="field-body"><ul class="first last simple">
+<li><strong>result_json</strong> (<em>str</em>) &#8211; JSON object representing a query result. Initial value: None</li>
+<li><strong>result</strong> (<em>list</em>) &#8211; Query result parsed into a list of dicts. Initial value: None</li>
+<li><strong>query_type</strong> (<em>str</em>) &#8211; Name of most recently run query, e.g., topN. Initial value: None</li>
+<li><strong>query_dict</strong> (<em>dict</em>) &#8211; JSON object representing the query. Initial value: None</li>
+</ul>
+</td>
+</tr>
+</tbody>
+</table>
+<p>Example</p>
+<div class="highlight-python"><table class="highlighttable"><tr><td class="linenos"><div class="linenodiv"><pre> 1
+ 2
+ 3
+ 4
+ 5
+ 6
+ 7
+ 8
+ 9
+10
+11
+12
+13
+14
+15
+16
+17
+18
+19
+20
+21
+22
+23
+24
+25
+26
+27
+28
+29
+30
+31
+32
+33
+34
+35
+36
+37
+38
+39
+40
+41
+42
+43
+44
+45
+46
+47</pre></div></td><td class="code"><div class="highlight"><pre>    <span class="o">&gt;&gt;&gt;</span> <span class="kn">from</span> <span class="nn">pydruid.client</span> <span class="kn">import</span> <span class="o">*</span>
+
+    <span class="o">&gt;&gt;&gt;</span> <span class="n">query</span> <span class="o">=</span> <span class="n">PyDruid</span><span class="p">(</span><span class="s">&#39;http://localhost:8083&#39;</span><span class="p">,</span> <span class="s">&#39;druid/v2/&#39;</span><span class="p">)</span>
+
+    <span class="o">&gt;&gt;&gt;</span> <span class="n">top</span> <span class="o">=</span> <span class="n">query</span><span class="o">.</span><span class="n">topn</span><span class="p">(</span>
+            <span class="n">datasource</span><span class="o">=</span><span class="s">&#39;twitterstream&#39;</span><span class="p">,</span>
+            <span class="n">granularity</span><span class="o">=</span><span class="s">&#39;all&#39;</span><span class="p">,</span>
+            <span class="n">intervals</span><span class="o">=</span><span class="s">&#39;2013-10-04/pt1h&#39;</span><span class="p">,</span>
+            <span class="n">aggregations</span><span class="o">=</span><span class="p">{</span><span class="s">&quot;count&quot;</span><span class="p">:</span> <span class="n">doublesum</span><span class="p">(</span><span class="s">&quot;count&quot;</span><span class="p">)},</span>
+            <span class="n">dimension</span><span class="o">=</span><span class="s">&#39;user_name&#39;</span><span class="p">,</span>
+            <span class="nb">filter</span> <span class="o">=</span> <span class="n">Dimension</span><span class="p">(</span><span class="s">&#39;user_lang&#39;</span><span class="p">)</span> <span class="o">==</span> <span class="s">&#39;en&#39;</span><span class="p">,</span>
+            <span class="n">metric</span><span class="o">=</span><span class="s">&#39;count&#39;</span><span class="p">,</span>
+            <span class="n">threshold</span><span class="o">=</span><span class="mi">2</span>
+        <span class="p">)</span>
+
+    <span class="o">&gt;&gt;&gt;</span> <span class="k">print</span> <span class="n">json</span><span class="o">.</span><span class="n">dumps</span><span class="p">(</span><span class="n">query</span><span class="o">.</span><span class="n">query_dict</span><span class="p">,</span> <span class="n">indent</span><span class="o">=</span><span class="mi">2</span><span class="p">)</span>
+    <span class="o">&gt;&gt;&gt;</span> <span class="p">{</span>
+          <span class="s">&quot;metric&quot;</span><span class="p">:</span> <span class="s">&quot;count&quot;</span><span class="p">,</span>
+          <span class="s">&quot;aggregations&quot;</span><span class="p">:</span> <span class="p">[</span>
+            <span class="p">{</span>
+              <span class="s">&quot;type&quot;</span><span class="p">:</span> <span class="s">&quot;doubleSum&quot;</span><span class="p">,</span>
+              <span class="s">&quot;fieldName&quot;</span><span class="p">:</span> <span class="s">&quot;count&quot;</span><span class="p">,</span>
+              <span class="s">&quot;name&quot;</span><span class="p">:</span> <span class="s">&quot;count&quot;</span>
+            <span class="p">}</span>
+          <span class="p">],</span>
+          <span class="s">&quot;dimension&quot;</span><span class="p">:</span> <span class="s">&quot;user_name&quot;</span><span class="p">,</span>
+          <span class="s">&quot;filter&quot;</span><span class="p">:</span> <span class="p">{</span>
+            <span class="s">&quot;type&quot;</span><span class="p">:</span> <span class="s">&quot;selector&quot;</span><span class="p">,</span>
+            <span class="s">&quot;dimension&quot;</span><span class="p">:</span> <span class="s">&quot;user_lang&quot;</span><span class="p">,</span>
+            <span class="s">&quot;value&quot;</span><span class="p">:</span> <span class="s">&quot;en&quot;</span>
+          <span class="p">},</span>
+          <span class="s">&quot;intervals&quot;</span><span class="p">:</span> <span class="s">&quot;2013-10-04/pt1h&quot;</span><span class="p">,</span>
+          <span class="s">&quot;dataSource&quot;</span><span class="p">:</span> <span class="s">&quot;twitterstream&quot;</span><span class="p">,</span>
+          <span class="s">&quot;granularity&quot;</span><span class="p">:</span> <span class="s">&quot;all&quot;</span><span class="p">,</span>
+          <span class="s">&quot;threshold&quot;</span><span class="p">:</span> <span class="mi">2</span><span class="p">,</span>
+          <span class="s">&quot;queryType&quot;</span><span class="p">:</span> <span class="s">&quot;topN&quot;</span>
+        <span class="p">}</span>
+
+    <span class="o">&gt;&gt;&gt;</span> <span class="k">print</span> <span class="n">query</span><span class="o">.</span><span class="n">result</span>
+    <span class="o">&gt;&gt;&gt;</span> <span class="p">[{</span><span class="s">&#39;timestamp&#39;</span><span class="p">:</span> <span class="s">&#39;2013-10-04T00:00:00.000Z&#39;</span><span class="p">,</span>
+        <span class="s">&#39;result&#39;</span><span class="p">:</span> <span class="p">[{</span><span class="s">&#39;count&#39;</span><span class="p">:</span> <span class="mf">7.0</span><span class="p">,</span> <span class="s">&#39;user_name&#39;</span><span class="p">:</span> <span class="s">&#39;user_1&#39;</span><span class="p">},</span> <span class="p">{</span><span class="s">&#39;count&#39;</span><span class="p">:</span> <span class="mf">6.0</span><span class="p">,</span> <span class="s">&#39;user_name&#39;</span><span class="p">:</span> <span class="s">&#39;user_2&#39;</span><span class="p">}]}]</span>
+
+    <span class="o">&gt;&gt;&gt;</span> <span class="n">df</span> <span class="o">=</span> <span class="n">query</span><span class="o">.</span><span class="n">export_pandas</span><span class="p">()</span>
+    <span class="o">&gt;&gt;&gt;</span> <span class="k">print</span> <span class="n">df</span>
+    <span class="o">&gt;&gt;&gt;</span>    <span class="n">count</span>                 <span class="n">timestamp</span>      <span class="n">user_name</span>
+        <span class="mi">0</span>      <span class="mi">7</span>  <span class="mi">2013</span><span class="o">-</span><span class="mi">10</span><span class="o">-</span><span class="mo">04</span><span class="n">T00</span><span class="p">:</span><span class="mo">00</span><span class="p">:</span><span class="mf">00.000</span><span class="n">Z</span>         <span class="n">user_1</span>
+        <span class="mi">1</span>      <span class="mi">6</span>  <span class="mi">2013</span><span class="o">-</span><span class="mi">10</span><span class="o">-</span><span class="mo">04</span><span class="n">T00</span><span class="p">:</span><span class="mo">00</span><span class="p">:</span><span class="mf">00.000</span><span class="n">Z</span>         <span class="n">user_2</span>
+</pre></div>
+</td></tr></table></div>
+<dl class="method">
+<dt id="client.PyDruid.export_pandas">
+<tt class="descname">export_pandas</tt><big>(</big><big>)</big><a class="headerlink" href="#client.PyDruid.export_pandas" title="Permalink to this definition">¶</a></dt>
+<dd><p>Export the current query result to a Pandas DataFrame object.</p>
+<table class="docutils field-list" frame="void" rules="none">
+<col class="field-name" />
+<col class="field-body" />
+<tbody valign="top">
+<tr class="field-odd field"><th class="field-name">Returns:</th><td class="field-body">The DataFrame representing the query result</td>
+</tr>
+<tr class="field-even field"><th class="field-name">Return type:</th><td class="field-body">DataFrame</td>
+</tr>
+<tr class="field-odd field"><th class="field-name" colspan="2">Raises NotImplementedError:</th></tr>
+<tr class="field-odd field"><td>&nbsp;</td><td class="field-body"></td>
+</tr>
+</tbody>
+</table>
+<p>Example</p>
+<div class="highlight-python"><table class="highlighttable"><tr><td class="linenos"><div class="linenodiv"><pre> 1
+ 2
+ 3
+ 4
+ 5
+ 6
+ 7
+ 8
+ 9
+10
+11
+12
+13
+14
+15
+16</pre></div></td><td class="code"><div class="highlight"><pre>    <span class="o">&gt;&gt;&gt;</span> <span class="n">top</span> <span class="o">=</span> <span class="n">query</span><span class="o">.</span><span class="n">topn</span><span class="p">(</span>
+            <span class="n">datasource</span><span class="o">=</span><span class="s">&#39;twitterstream&#39;</span><span class="p">,</span>
+            <span class="n">granularity</span><span class="o">=</span><span class="s">&#39;all&#39;</span><span class="p">,</span>
+            <span class="n">intervals</span><span class="o">=</span><span class="s">&#39;2013-10-04/pt1h&#39;</span><span class="p">,</span>
+            <span class="n">aggregations</span><span class="o">=</span><span class="p">{</span><span class="s">&quot;count&quot;</span><span class="p">:</span> <span class="n">doublesum</span><span class="p">(</span><span class="s">&quot;count&quot;</span><span class="p">)},</span>
+            <span class="n">dimension</span><span class="o">=</span><span class="s">&#39;user_name&#39;</span><span class="p">,</span>
+            <span class="nb">filter</span> <span class="o">=</span> <span class="n">Dimension</span><span class="p">(</span><span class="s">&#39;user_lang&#39;</span><span class="p">)</span> <span class="o">==</span> <span class="s">&#39;en&#39;</span><span class="p">,</span>
+            <span class="n">metric</span><span class="o">=</span><span class="s">&#39;count&#39;</span><span class="p">,</span>
+            <span class="n">threshold</span><span class="o">=</span><span class="mi">2</span>
+        <span class="p">)</span>
+
+    <span class="o">&gt;&gt;&gt;</span> <span class="n">df</span> <span class="o">=</span> <span class="n">query</span><span class="o">.</span><span class="n">export_pandas</span><span class="p">()</span>
+    <span class="o">&gt;&gt;&gt;</span> <span class="k">print</span> <span class="n">df</span>
+    <span class="o">&gt;&gt;&gt;</span>    <span class="n">count</span>                 <span class="n">timestamp</span>      <span class="n">user_name</span>
+        <span class="mi">0</span>      <span class="mi">7</span>  <span class="mi">2013</span><span class="o">-</span><span class="mi">10</span><span class="o">-</span><span class="mo">04</span><span class="n">T00</span><span class="p">:</span><span class="mo">00</span><span class="p">:</span><span class="mf">00.000</span><span class="n">Z</span>         <span class="n">user_1</span>
+        <span class="mi">1</span>      <span class="mi">6</span>  <span class="mi">2013</span><span class="o">-</span><span class="mi">10</span><span class="o">-</span><span class="mo">04</span><span class="n">T00</span><span class="p">:</span><span class="mo">00</span><span class="p">:</span><span class="mf">00.000</span><span class="n">Z</span>         <span class="n">user_2</span>
+</pre></div>
+</td></tr></table></div>
+</dd></dl>
+
+<dl class="method">
+<dt id="client.PyDruid.export_tsv">
+<tt class="descname">export_tsv</tt><big>(</big><em>dest_path</em><big>)</big><a class="headerlink" href="#client.PyDruid.export_tsv" title="Permalink to this definition">¶</a></dt>
+<dd><p>Export the current query result to a tsv file.</p>
+<table class="docutils field-list" frame="void" rules="none">
+<col class="field-name" />
+<col class="field-body" />
+<tbody valign="top">
+<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><strong>dest_path</strong> (<em>str</em>) &#8211; file to write query results to</td>
+</tr>
+<tr class="field-even field"><th class="field-name" colspan="2">Raises NotImplementedError:</th></tr>
+<tr class="field-even field"><td>&nbsp;</td><td class="field-body"></td>
+</tr>
+</tbody>
+</table>
+<p>Example</p>
+<div class="highlight-python"><table class="highlighttable"><tr><td class="linenos"><div class="linenodiv"><pre> 1
+ 2
+ 3
+ 4
+ 5
+ 6
+ 7
+ 8
+ 9
+10
+11
+12
+13
+14
+15
+16</pre></div></td><td class="code"><div class="highlight"><pre>    &gt;&gt;&gt; top = query.topn(
+            datasource=&#39;twitterstream&#39;,
+            granularity=&#39;all&#39;,
+            intervals=&#39;2013-10-04/pt1h&#39;,
+            aggregations={&quot;count&quot;: doublesum(&quot;count&quot;)},
+            dimension=&#39;user_name&#39;,
+            filter = Dimension(&#39;user_lang&#39;) == &#39;en&#39;,
+            metric=&#39;count&#39;,
+            threshold=2
+        )
+
+    &gt;&gt;&gt; query.export_tsv(&#39;top.tsv&#39;)
+    &gt;&gt;&gt; !cat top.tsv
+    &gt;&gt;&gt; count       user_name       timestamp
+        7.0 user_1  2013-10-04T00:00:00.000Z
+        6.0 user_2  2013-10-04T00:00:00.000Z
+</pre></div>
+</td></tr></table></div>
+</dd></dl>
+
+<dl class="method">
+<dt id="client.PyDruid.groupby">
+<tt class="descname">groupby</tt><big>(</big><em>**kwargs</em><big>)</big><a class="headerlink" href="#client.PyDruid.groupby" title="Permalink to this definition">¶</a></dt>
+<dd><p>A group-by query groups a results set (the requested aggregate metrics) by the specified dimension(s).</p>
+<p>Required key/value pairs:</p>
+<table class="docutils field-list" frame="void" rules="none">
+<col class="field-name" />
+<col class="field-body" />
+<tbody valign="top">
+<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
+<li><strong>datasource</strong> (<em>str</em>) &#8211; Data source to query</li>
+<li><strong>granularity</strong> (<em>str</em>) &#8211; Time bucket to aggregate data by hour, day, minute, etc.,</li>
+<li><strong>intervals</strong> (<em>str or list</em>) &#8211; ISO-8601 intervals for which to run the query on</li>
+<li><strong>aggregations</strong> (<em>dict</em>) &#8211; A map from aggregator name to one of the pydruid.utils.aggregators e.g., doublesum</li>
+<li><strong>dimensions</strong> (<em>list</em>) &#8211; The dimensions to group by</li>
+</ul>
+</td>
+</tr>
+<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">The query result</p>
+</td>
+</tr>
+<tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">list[dict]</p>
+</td>
+</tr>
+</tbody>
+</table>
+<p>Optional key/value pairs:</p>
+<table class="docutils field-list" frame="void" rules="none">
+<col class="field-name" />
+<col class="field-body" />
+<tbody valign="top">
+<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first last simple">
+<li><strong>filter</strong> (<em>pydruid.utils.filters.Filter</em>) &#8211; Indicates which rows of data to include in the query</li>
+<li><strong>post_aggregations</strong> &#8211; A dict with string key = &#8216;post_aggregator_name&#8217;, and value pydruid.utils.PostAggregator</li>
+</ul>
+</td>
+</tr>
+</tbody>
+</table>
+<p>Example:</p>
+<div class="highlight-python"><table class="highlighttable"><tr><td class="linenos"><div class="linenodiv"><pre> 1
+ 2
+ 3
+ 4
+ 5
+ 6
+ 7
+ 8
+ 9
+10
+11
+12</pre></div></td><td class="code"><div class="highlight"><pre>    <span class="o">&gt;&gt;&gt;</span> <span class="n">group</span> <span class="o">=</span> <span class="n">query</span><span class="o">.</span><span class="n">groupby</span><span class="p">(</span>
+            <span class="n">dataSource</span><span class="o">=</span><span class="s">&#39;twitterstream&#39;</span><span class="p">,</span>
+            <span class="n">granularity</span><span class="o">=</span><span class="s">&#39;hour&#39;</span><span class="p">,</span>
+            <span class="n">intervals</span><span class="o">=</span><span class="s">&#39;2013-10-04/pt1h&#39;</span><span class="p">,</span>
+            <span class="n">dimensions</span><span class="o">=</span><span class="p">[</span><span class="s">&quot;user_name&quot;</span><span class="p">,</span> <span class="s">&quot;reply_to_name&quot;</span><span class="p">],</span>
+            <span class="nb">filter</span><span class="o">=~</span><span class="p">(</span><span class="n">Dimension</span><span class="p">(</span><span class="s">&quot;reply_to_name&quot;</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;Not A Reply&quot;</span><span class="p">),</span>
+            <span class="n">aggregations</span><span class="o">=</span><span class="p">{</span><span class="s">&quot;count&quot;</span><span class="p">:</span> <span class="n">doublesum</span><span class="p">(</span><span class="s">&quot;count&quot;</span><span class="p">)}</span>
+        <span class="p">)</span>
+    <span class="o">&gt;&gt;&gt;</span> <span class="k">for</span> <span class="n">k</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="mi">2</span><span class="p">):</span>
+        <span class="o">...</span>     <span class="k">print</span> <span class="n">group</span><span class="p">[</span><span class="n">k</span><span class="p">]</span>
+    <span class="o">&gt;&gt;&gt;</span> <span class="p">{</span><span class="s">&#39;timestamp&#39;</span><span class="p">:</span> <span class="s">&#39;2013-10-04T00:00:00.000Z&#39;</span><span class="p">,</span> <span class="s">&#39;version&#39;</span><span class="p">:</span> <span class="s">&#39;v1&#39;</span><span class="p">,</span> <span class="s">&#39;event&#39;</span><span class="p">:</span> <span class="p">{</span><span class="s">&#39;count&#39;</span><span class="p">:</span> <span class="mf">1.0</span><span class="p">,</span> <span class="s">&#39;user_name&#39;</span><span class="p">:</span> <span class="s">&#39;user_1&#39;</span><span class="p">,</span> <span class="s">&#39;reply_to_name&#39;</span><span class="p">:</span> <span class="s">&#39;user_2&#39;</span><span class="p">}}</span>
+    <span class="o">&gt;&gt;&gt;</span> <span class="p">{</span><span class="s">&#39;timestamp&#39;</span><span class="p">:</span> <span class="s">&#39;2013-10-04T00:00:00.000Z&#39;</span><span class="p">,</span> <span class="s">&#39;version&#39;</span><span class="p">:</span> <span class="s">&#39;v1&#39;</span><span class="p">,</span> <span class="s">&#39;event&#39;</span><span class="p">:</span> <span class="p">{</span><span class="s">&#39;count&#39;</span><span class="p">:</span> <span class="mf">1.0</span><span class="p">,</span> <span class="s">&#39;user_name&#39;</span><span class="p">:</span> <span class="s">&#39;user_2&#39;</span><span class="p">,</span> <span class="s">&#39;reply_to_name&#39;</span><span class="p">:</span> <span class="s">&#39;user_3&#39;</span><span class="p">}}</span>
+</pre></div>
+</td></tr></table></div>
+</dd></dl>
+
+<dl class="method">
+<dt id="client.PyDruid.segment_metadata">
+<tt class="descname">segment_metadata</tt><big>(</big><em>**kwargs</em><big>)</big><a class="headerlink" href="#client.PyDruid.segment_metadata" title="Permalink to this definition">¶</a></dt>
+<dd><p>A segment meta-data query returns per segment information about:</p>
+<ul class="simple">
+<li>Cardinality of all the columns present</li>
+<li>Column type</li>
+<li>Estimated size in bytes</li>
+<li>Estimated size in bytes of each column</li>
+<li>Interval the segment covers</li>
+<li>Segment ID</li>
+</ul>
+<p>Required key/value pairs:</p>
+<table class="docutils field-list" frame="void" rules="none">
+<col class="field-name" />
+<col class="field-body" />
+<tbody valign="top">
+<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
+<li><strong>datasource</strong> (<em>str</em>) &#8211; Data source to query</li>
+<li><strong>intervals</strong> (<em>str or list</em>) &#8211; ISO-8601 intervals for which to run the query on</li>
+</ul>
+</td>
+</tr>
+<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">The query result</p>
+</td>
+</tr>
+<tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">list[dict]</p>
+</td>
+</tr>
+</tbody>
+</table>
+<p>Example:</p>
+<div class="highlight-python"><table class="highlighttable"><tr><td class="linenos"><div class="linenodiv"><pre>1
+2
+3
+4
+5</pre></div></td><td class="code"><div class="highlight"><pre>    <span class="o">&gt;&gt;&gt;</span> <span class="n">meta</span> <span class="o">=</span> <span class="n">query</span><span class="o">.</span><span class="n">segment_metadata</span><span class="p">(</span><span class="n">datasource</span><span class="o">=</span><span class="s">&#39;twitterstream&#39;</span><span class="p">,</span> <span class="n">intervals</span> <span class="o">=</span> <span class="s">&#39;2013-10-04/pt1h&#39;</span><span class="p">)</span>
+    <span class="o">&gt;&gt;&gt;</span> <span class="k">print</span> <span class="n">meta</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span><span class="o">.</span><span class="n">keys</span><span class="p">()</span>
+    <span class="o">&gt;&gt;&gt;</span> <span class="p">[</span><span class="s">&#39;intervals&#39;</span><span class="p">,</span> <span class="s">&#39;id&#39;</span><span class="p">,</span> <span class="s">&#39;columns&#39;</span><span class="p">,</span> <span class="s">&#39;size&#39;</span><span class="p">]</span>
+    <span class="o">&gt;&gt;&gt;</span> <span class="k">print</span> <span class="n">meta</span><span class="p">[</span><span class="mi">0</span><span class="p">][</span><span class="s">&#39;columns&#39;</span><span class="p">][</span><span class="s">&#39;tweet_length&#39;</span><span class="p">]</span>
+    <span class="o">&gt;&gt;&gt;</span> <span class="p">{</span><span class="s">&#39;errorMessage&#39;</span><span class="p">:</span> <span class="bp">None</span><span class="p">,</span> <span class="s">&#39;cardinality&#39;</span><span class="p">:</span> <span class="bp">None</span><span class="p">,</span> <span class="s">&#39;type&#39;</span><span class="p">:</span> <span class="s">&#39;FLOAT&#39;</span><span class="p">,</span> <span class="s">&#39;size&#39;</span><span class="p">:</span> <span class="mi">30908008</span><span class="p">}</span>
+</pre></div>
+</td></tr></table></div>
+</dd></dl>
+
+<dl class="method">
+<dt id="client.PyDruid.time_boundary">
+<tt class="descname">time_boundary</tt><big>(</big><em>**kwargs</em><big>)</big><a class="headerlink" href="#client.PyDruid.time_boundary" title="Permalink to this definition">¶</a></dt>
+<dd><p>A time boundary query returns the min and max timestamps present in a data source.</p>
+<p>Required key/value pairs:</p>
+<table class="docutils field-list" frame="void" rules="none">
+<col class="field-name" />
+<col class="field-body" />
+<tbody valign="top">
+<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><strong>datasource</strong> (<em>str</em>) &#8211; Data source to query</td>
+</tr>
+<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body">The query result</td>
+</tr>
+<tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body">list[dict]</td>
+</tr>
+</tbody>
+</table>
+<p>Example:</p>
+<div class="highlight-python"><table class="highlighttable"><tr><td class="linenos"><div class="linenodiv"><pre>1
+2
+3</pre></div></td><td class="code"><div class="highlight"><pre>    <span class="o">&gt;&gt;&gt;</span> <span class="n">bound</span> <span class="o">=</span> <span class="n">query</span><span class="o">.</span><span class="n">time_boundary</span><span class="p">(</span><span class="n">datasource</span><span class="o">=</span><span class="s">&#39;twitterstream&#39;</span><span class="p">)</span>
+    <span class="o">&gt;&gt;&gt;</span> <span class="k">print</span> <span class="n">bound</span>
+    <span class="o">&gt;&gt;&gt;</span> <span class="p">[{</span><span class="s">&#39;timestamp&#39;</span><span class="p">:</span> <span class="s">&#39;2011-09-14T15:00:00.000Z&#39;</span><span class="p">,</span> <span class="s">&#39;result&#39;</span><span class="p">:</span> <span class="p">{</span><span class="s">&#39;minTime&#39;</span><span class="p">:</span> <span class="s">&#39;2011-09-14T15:00:00.000Z&#39;</span><span class="p">,</span> <span class="s">&#39;maxTime&#39;</span><span class="p">:</span> <span class="s">&#39;2014-03-04T23:44:00.000Z&#39;</span><span class="p">}}]</span>
+</pre></div>
+</td></tr></table></div>
+</dd></dl>
+
+<dl class="method">
+<dt id="client.PyDruid.timeseries">
+<tt class="descname">timeseries</tt><big>(</big><em>**kwargs</em><big>)</big><a class="headerlink" href="#client.PyDruid.timeseries" title="Permalink to this definition">¶</a></dt>
+<dd><p>A timeseries query returns the values of the requested metrics (in aggregate) for each timestamp.</p>
+<p>Required key/value pairs:</p>
+<table class="docutils field-list" frame="void" rules="none">
+<col class="field-name" />
+<col class="field-body" />
+<tbody valign="top">
+<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
+<li><strong>datasource</strong> (<em>str</em>) &#8211; Data source to query</li>
+<li><strong>granularity</strong> (<em>str</em>) &#8211; Time bucket to aggregate data by hour, day, minute, etc.,</li>
+<li><strong>intervals</strong> (<em>str or list</em>) &#8211; ISO-8601 intervals for which to run the query on</li>
+<li><strong>aggregations</strong> (<em>dict</em>) &#8211; A map from aggregator name to one of the pydruid.utils.aggregators e.g., doublesum</li>
+</ul>
+</td>
+</tr>
+<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">The query result</p>
+</td>
+</tr>
+<tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">list[dict]</p>
+</td>
+</tr>
+</tbody>
+</table>
+<p>Optional key/value pairs:</p>
+<table class="docutils field-list" frame="void" rules="none">
+<col class="field-name" />
+<col class="field-body" />
+<tbody valign="top">
+<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first last simple">
+<li><strong>filter</strong> (<em>pydruid.utils.filters.Filter</em>) &#8211; Indicates which rows of data to include in the query</li>
+<li><strong>post_aggregations</strong> &#8211; A dict with string key = &#8216;post_aggregator_name&#8217;, and value pydruid.utils.PostAggregator</li>
+</ul>
+</td>
+</tr>
+</tbody>
+</table>
+<p>Example:</p>
+<div class="highlight-python"><table class="highlighttable"><tr><td class="linenos"><div class="linenodiv"><pre>1
+2
+3
+4
+5
+6
+7
+8
+9</pre></div></td><td class="code"><div class="highlight"><pre>    <span class="o">&gt;&gt;&gt;</span> <span class="n">counts</span> <span class="o">=</span> <span class="n">query</span><span class="o">.</span><span class="n">timeseries</span><span class="p">(</span>
+            <span class="n">datasource</span><span class="o">=</span><span class="n">twitterstream</span><span class="p">,</span>
+            <span class="n">granularity</span><span class="o">=</span><span class="s">&#39;hour&#39;</span><span class="p">,</span>
+            <span class="n">intervals</span><span class="o">=</span><span class="s">&#39;2013-06-14/pt1h&#39;</span><span class="p">,</span>
+            <span class="n">aggregations</span><span class="o">=</span><span class="p">{</span><span class="s">&quot;count&quot;</span><span class="p">:</span> <span class="n">doublesum</span><span class="p">(</span><span class="s">&quot;count&quot;</span><span class="p">),</span> <span class="s">&quot;rows&quot;</span><span class="p">:</span> <span class="n">count</span><span class="p">(</span><span class="s">&quot;rows&quot;</span><span class="p">)},</span>
+            <span class="n">post_aggregations</span><span class="o">=</span><span class="p">{</span><span class="s">&#39;percent&#39;</span><span class="p">:</span> <span class="p">(</span><span class="n">Field</span><span class="p">(</span><span class="s">&#39;count&#39;</span><span class="p">)</span> <span class="o">/</span> <span class="n">Field</span><span class="p">(</span><span class="s">&#39;rows&#39;</span><span class="p">))</span> <span class="o">*</span> <span class="n">Const</span><span class="p">(</span><span class="mi">100</span><span class="p">))}</span>
+        <span class="p">)</span>
+    <span class="o">&gt;&gt;&gt;</span> <span class="k">print</span> <span class="n">counts</span>
+    <span class="o">&gt;&gt;&gt;</span> <span class="p">[{</span><span class="s">&#39;timestamp&#39;</span><span class="p">:</span> <span class="s">&#39;2013-06-14T00:00:00.000Z&#39;</span><span class="p">,</span> <span class="s">&#39;result&#39;</span><span class="p">:</span> <span class="p">{</span><span class="s">&#39;count&#39;</span><span class="p">:</span> <span class="mf">9619.0</span><span class="p">,</span> <span class="s">&#39;rows&#39;</span><span class="p">:</span> <span class="mi">8007</span><span class="p">,</span> <span class="s">&#39;percent&#39;</span><span class="p">:</span> <span class="mf">120.13238416385663</span><span class="p">}}]</span>
+</pre></div>
+</td></tr></table></div>
+</dd></dl>
+
+<dl class="method">
+<dt id="client.PyDruid.topn">
+<tt class="descname">topn</tt><big>(</big><em>**kwargs</em><big>)</big><a class="headerlink" href="#client.PyDruid.topn" title="Permalink to this definition">¶</a></dt>
+<dd><p>A TopN query returns a set of the values in a given dimension, sorted by a specified metric. Conceptually, a
+topN can be thought of as an approximate GroupByQuery over a single dimension with an Ordering spec. TopNs are
+faster and more resource efficient than GroupBy for this use case.</p>
+<p>Required key/value pairs:</p>
+<table class="docutils field-list" frame="void" rules="none">
+<col class="field-name" />
+<col class="field-body" />
+<tbody valign="top">
+<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
+<li><strong>datasource</strong> (<em>str</em>) &#8211; Data source to query</li>
+<li><strong>granularity</strong> (<em>str</em>) &#8211; Aggregate data by hour, day, minute, etc.,</li>
+<li><strong>intervals</strong> (<em>str or list</em>) &#8211; ISO-8601 intervals of data to query</li>
+<li><strong>aggregations</strong> (<em>dict</em>) &#8211; A map from aggregator name to one of the pydruid.utils.aggregators e.g., doublesum</li>
+<li><strong>dimension</strong> (<em>str</em>) &#8211; Dimension to run the query against</li>
+<li><strong>metric</strong> (<em>str</em>) &#8211; Metric over which to sort the specified dimension by</li>
+<li><strong>threshold</strong> (<em>int</em>) &#8211; How many of the top items to return</li>
+</ul>
+</td>
+</tr>
+<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">The query result</p>
+</td>
+</tr>
+<tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">list[dict]</p>
+</td>
+</tr>
+</tbody>
+</table>
+<p>Optional key/value pairs:</p>
+<table class="docutils field-list" frame="void" rules="none">
+<col class="field-name" />
+<col class="field-body" />
+<tbody valign="top">
+<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first last simple">
+<li><strong>filter</strong> (<em>pydruid.utils.filters.Filter</em>) &#8211; Indicates which rows of data to include in the query</li>
+<li><strong>post_aggregations</strong> &#8211; A dict with string key = &#8216;post_aggregator_name&#8217;, and value pydruid.utils.PostAggregator</li>
+</ul>
+</td>
+</tr>
+</tbody>
+</table>
+<p>Example:</p>
+<div class="highlight-python"><table class="highlighttable"><tr><td class="linenos"><div class="linenodiv"><pre> 1
+ 2
+ 3
+ 4
+ 5
+ 6
+ 7
+ 8
+ 9
+10
+11
+12</pre></div></td><td class="code"><div class="highlight"><pre>    <span class="o">&gt;&gt;&gt;</span> <span class="n">top</span> <span class="o">=</span> <span class="n">query</span><span class="o">.</span><span class="n">topn</span><span class="p">(</span>
+                <span class="n">datasource</span><span class="o">=</span><span class="s">&#39;twitterstream&#39;</span><span class="p">,</span>
+                <span class="n">granularity</span><span class="o">=</span><span class="s">&#39;all&#39;</span><span class="p">,</span>
+                <span class="n">intervals</span><span class="o">=</span><span class="s">&#39;2013-06-14/pt1h&#39;</span><span class="p">,</span>
+                <span class="n">aggregations</span><span class="o">=</span><span class="p">{</span><span class="s">&quot;count&quot;</span><span class="p">:</span> <span class="n">doublesum</span><span class="p">(</span><span class="s">&quot;count&quot;</span><span class="p">)},</span>
+                <span class="n">dimension</span><span class="o">=</span><span class="s">&#39;user_name&#39;</span><span class="p">,</span>
+                <span class="n">metric</span><span class="o">=</span><span class="s">&#39;count&#39;</span><span class="p">,</span>
+                <span class="nb">filter</span><span class="o">=</span><span class="n">Dimension</span><span class="p">(</span><span class="s">&#39;user_lang&#39;</span><span class="p">)</span> <span class="o">==</span> <span class="s">&#39;en&#39;</span><span class="p">,</span>
+                <span class="n">threshold</span><span class="o">=</span><span class="mi">1</span>
+            <span class="p">)</span>
+    <span class="o">&gt;&gt;&gt;</span> <span class="k">print</span> <span class="n">top</span>
+    <span class="o">&gt;&gt;&gt;</span> <span class="p">[{</span><span class="s">&#39;timestamp&#39;</span><span class="p">:</span> <span class="s">&#39;2013-06-14T00:00:00.000Z&#39;</span><span class="p">,</span> <span class="s">&#39;result&#39;</span><span class="p">:</span> <span class="p">[{</span><span class="s">&#39;count&#39;</span><span class="p">:</span> <span class="mf">22.0</span><span class="p">,</span> <span class="s">&#39;user&#39;</span><span class="p">:</span> <span class="s">&quot;cool_user&quot;</span><span class="p">}}]}]</span>
+</pre></div>
+</td></tr></table></div>
+</dd></dl>
+
+</dd></dl>
+
+</div>
+<div class="section" id="indices-and-tables">
+<h1>Indices and tables<a class="headerlink" href="#indices-and-tables" title="Permalink to this headline">¶</a></h1>
+<ul class="simple">
+<li><a class="reference internal" href="genindex.html"><em>Index</em></a></li>
+<li><a class="reference internal" href="py-modindex.html"><em>Module Index</em></a></li>
+<li><a class="reference internal" href="search.html"><em>Search Page</em></a></li>
+</ul>
+</div>
+
+
+          </div>
+        </div>
+      </div>
+      <div class="sphinxsidebar">
+        <div class="sphinxsidebarwrapper">
+  <h3><a href="#">Table Of Contents</a></h3>
+  <ul>
+<li><a class="reference internal" href="#">Welcome to PyDruid&#8217;s documentation!</a></li>
+<li><a class="reference internal" href="#indices-and-tables">Indices and tables</a></li>
+</ul>
+
+  <h3>This Page</h3>
+  <ul class="this-page-menu">
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+      Created using <a href="http://sphinx-doc.org/">Sphinx</a> 1.2.1.
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+  </body>
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\ No newline at end of file
diff --git a/docs/build/html/objects.inv b/docs/build/html/objects.inv
new file mode 100644
index 00000000..14324202
--- /dev/null
+++ b/docs/build/html/objects.inv
@@ -0,0 +1,8 @@
+# Sphinx inventory version 2
+# Project: PyDruid
+# Version: 0.2.0
+# The remainder of this file is compressed using zlib.
+xڕ��
+�0E�~E��*u뺛.
+�~��Π��HƢ��X� m]��yi�� �"0V
+R"/��r�|=kuW��"q���#�!���Hh �m�	�l��	�AG���c�J�~'�*���(�U���<KMuc�ৗN�[�Z��u:�����3{�8a /)�/�d� ���it�s��c����5{ε�q��u�'�1�4
\ No newline at end of file
diff --git a/docs/build/html/py-modindex.html b/docs/build/html/py-modindex.html
new file mode 100644
index 00000000..5fce7394
--- /dev/null
+++ b/docs/build/html/py-modindex.html
@@ -0,0 +1,112 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
+  "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
+
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+  <head>
+    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
+    
+    <title>Python Module Index &mdash; PyDruid 0.2.0 documentation</title>
+    
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+        <li class="right" >
+          <a href="#" title="Python Module Index"
+             >modules</a> |</li>
+        <li><a href="index.html">PyDruid 0.2.0 documentation</a> &raquo;</li> 
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+    Enter search terms or a module, class or function name.
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diff --git a/docs/build/html/search.html b/docs/build/html/search.html
new file mode 100644
index 00000000..6881731b
--- /dev/null
+++ b/docs/build/html/search.html
@@ -0,0 +1,105 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
+  "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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+    
+    <title>Search &mdash; PyDruid 0.2.0 documentation</title>
+    
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+    <div class="footer">
+        &copy; Copyright 2014, Deep Ganguli.
+      Created using <a href="http://sphinx-doc.org/">Sphinx</a> 1.2.1.
+    </div>
+  </body>
+</html>
\ No newline at end of file
diff --git a/docs/build/html/searchindex.js b/docs/build/html/searchindex.js
new file mode 100644
index 00000000..f826e1a7
--- /dev/null
+++ b/docs/build/html/searchindex.js
@@ -0,0 +1 @@
+Search.setIndex({envversion:42,terms:{recipi:[],querytyp:0,all:0,code:[],execut:0,user_lang:0,queri:0,over:0,query_dict:0,user_total_tweet:[],effici:0,yet:[],languag:[],paramet:0,content:0,typeerror:[],group:0,expos:0,also:0,percent:0,"000z_2013":[],send:[],granular:0,version:0,dict:0,matlab:0,tsv:0,my_dimens:[],pt1h:0,spec:0,inform:0,url_domain:[],build_queri:[],sourc:0,"return":0,string:0,first_hashtag:[],get:[],python:0,timestamp:0,dai:0,initi:0,bound:0,util:0,post_aggreg:0,datasourc:0,"04t23":0,"class":0,discuss:[],requir:0,cool:[],name:0,export_panda:0,query_typ:0,list:0,integ:[],item:0,exce:[],math:[],each:0,user_nam:0,page:0,user_mention_nam:[],dimens:0,set:0,dump:0,frame:[],resourc:0,favorit:0,message_bodi:[],threshold:0,meta:0,"export":0,result:0,arg:[],further:[],user_time_zon:[],charact:[],num_favorit:[],num_ment:[],variabl:0,index:0,twitter:[],num_hashtag:[],time_boundari:0,cover:0,conceptu:0,cool_us:0,boundari:0,per:0,current:0,"case":0,state:[],estim:0,lineno:[],print:0,"import":0,row:0,method:0,localhost:0,integr:[],has_geo:[],has_link:[],run:0,kei:0,timeseri:0,bodi:[],"05t04":[],"05t00":[],dest_path:0,mintim:0,"const":0,"byte":0,valu:0,search:0,post_aggregator_nam:0,sender:[],rtype:[],column:0,twitterstream:0,aggregator_nam:[],groupbi:0,against:0,user_2:0,user_3:0,user_1:0,is_vir:[],messag:[],pt2h:[],basestr:[],url:0,mani:0,my_data:[],top:0,block:[],segment_metadata:0,fieldnam:0,rang:0,simpli:0,doublesum:0,modul:0,"float":0,number:[],julia:0,api:0,done:[],par2:[],par1:[],rt_name:[],topn:0,your:0,size:0,prioriti:[],"14t15":0,given:0,"long":[],from:0,export_tsv:0,segment:0,support:[],dude:[],lol:[],errormessag:0,json:0,num_link:[],is_retweet:[],time:0,type:0,interv:0,result_json:0,sort:0,field:0,option:0,thought:0,tool:0,about:0,specifi:0,argument:[],"280z":[],"000z":0,"__time":[],pars:0,butt:[],indent:0,than:0,present:0,count:0,none:0,endpoint:0,word:[],hour:0,stack:0,bucket:0,maxtim:0,cat:0,panda:0,defin:[],below:[],tweet_length:0,can:0,str:0,has_ment:[],minut:0,more:0,bard:0,aggreg:0,listen:0,rad:[],comput:0,creat:0,"int":0,descript:[],metric:0,fuck:[],deep:[],repres:0,twitterstream_2013:[],cluster:0,kwarg:0,user_loc:[],file:0,reply_to_nam:0,var1:[],notimplementederror:0,analysi:0,cardin:0,filter:0,num_follow:[],end:[],etc:0,var2:[],"14t00":0,excel:0,event:0,write:0,how:0,post:[],client:0,bool:[],which:0,iso:0,most:0,postaggreg:0,simpl:0,singl:0,node:0,map:0,http:0,valueerror:[],results_json:[],usernam:[],max:0,groupbyqueri:0,object:0,druid:0,fucker:[],fart:[],rais:0,user:0,pair:0,param:[],data:0,"04t00":0,recent:0,subsequ:0,selector:0,faster:0,furthermor:[],scientif:0,approxim:0,min:0,request:0,lineo:[],person:[],exampl:0,thi:0,repli:0,order:0,datafram:0,includ:0},objtypes:{"0":"py:module","1":"py:method","2":"py:class"},objnames:{"0":["py","module","Python module"],"1":["py","method","Python method"],"2":["py","class","Python class"]},filenames:["index"],titles:["Welcome to PyDruid&#8217;s documentation!"],objects:{"":{pydruid:[0,0,0,"-"]},client:{PyDruid:[0,2,1,""]},"client.PyDruid":{export_tsv:[0,1,1,""],topn:[0,1,1,""],time_boundary:[0,1,1,""],timeseries:[0,1,1,""],export_pandas:[0,1,1,""],groupby:[0,1,1,""],segment_metadata:[0,1,1,""]}},titleterms:{pydruid:0,document:0,welcom:0,indic:0,tabl:0}})
\ No newline at end of file
diff --git a/docs/figures/avg_tweet_length.png b/docs/figures/avg_tweet_length.png
new file mode 100644
index 00000000..7d123c42
Binary files /dev/null and b/docs/figures/avg_tweet_length.png differ
diff --git a/docs/figures/twitter_graph.png b/docs/figures/twitter_graph.png
new file mode 100644
index 00000000..d6212fea
Binary files /dev/null and b/docs/figures/twitter_graph.png differ
diff --git a/docs/source/conf.py b/docs/source/conf.py
new file mode 100644
index 00000000..6777cf18
--- /dev/null
+++ b/docs/source/conf.py
@@ -0,0 +1,263 @@
+# -*- coding: utf-8 -*-
+#
+# PyDruid documentation build configuration file, created by
+# sphinx-quickstart on Mon Mar  3 16:38:17 2014.
+#
+# This file is execfile()d with the current directory set to its
+# containing dir.
+#
+# Note that not all possible configuration values are present in this
+# autogenerated file.
+#
+# All configuration values have a default; values that are commented out
+# serve to show the default.
+
+import sys
+import os
+
+# If extensions (or modules to document with autodoc) are in another directory,
+# add these directories to sys.path here. If the directory is relative to the
+# documentation root, use os.path.abspath to make it absolute, like shown here.
+#sys.path.insert(0, os.path.abspath('.'))
+
+sys.path.insert(0, '/Users/dganguli/src/pydruid/')
+sys.path.insert(0, '/Users/dganguli/src/pydruid/pydruid')
+# -- General configuration ------------------------------------------------
+
+# If your documentation needs a minimal Sphinx version, state it here.
+#needs_sphinx = '1.0'
+
+# Add any Sphinx extension module names here, as strings. They can be
+# extensions coming with Sphinx (named 'sphinx.ext.*') or your custom
+# ones.
+extensions = [
+    'sphinx.ext.autodoc',
+    'sphinx.ext.doctest',
+]
+
+# Add any paths that contain templates here, relative to this directory.
+templates_path = ['_templates']
+
+# The suffix of source filenames.
+source_suffix = '.rst'
+
+# The encoding of source files.
+#source_encoding = 'utf-8-sig'
+
+# The master toctree document.
+master_doc = 'index'
+
+# General information about the project.
+project = u'PyDruid'
+copyright = u'2014, Deep Ganguli'
+
+# The version info for the project you're documenting, acts as replacement for
+# |version| and |release|, also used in various other places throughout the
+# built documents.
+#
+# The short X.Y version.
+version = '0.2.0'
+# The full version, including alpha/beta/rc tags.
+release = '0.2.0'
+
+# The language for content autogenerated by Sphinx. Refer to documentation
+# for a list of supported languages.
+#language = None
+
+# There are two options for replacing |today|: either, you set today to some
+# non-false value, then it is used:
+#today = ''
+# Else, today_fmt is used as the format for a strftime call.
+#today_fmt = '%B %d, %Y'
+
+# List of patterns, relative to source directory, that match files and
+# directories to ignore when looking for source files.
+exclude_patterns = []
+
+# The reST default role (used for this markup: `text`) to use for all
+# documents.
+#default_role = None
+
+# If true, '()' will be appended to :func: etc. cross-reference text.
+#add_function_parentheses = True
+
+# If true, the current module name will be prepended to all description
+# unit titles (such as .. function::).
+#add_module_names = True
+
+# If true, sectionauthor and moduleauthor directives will be shown in the
+# output. They are ignored by default.
+#show_authors = False
+
+# The name of the Pygments (syntax highlighting) style to use.
+pygments_style = 'sphinx'
+
+# A list of ignored prefixes for module index sorting.
+#modindex_common_prefix = []
+
+# If true, keep warnings as "system message" paragraphs in the built documents.
+#keep_warnings = False
+
+
+# -- Options for HTML output ----------------------------------------------
+
+# The theme to use for HTML and HTML Help pages.  See the documentation for
+# a list of builtin themes.
+html_theme = 'default'
+
+# Theme options are theme-specific and customize the look and feel of a theme
+# further.  For a list of options available for each theme, see the
+# documentation.
+#html_theme_options = {}
+
+# Add any paths that contain custom themes here, relative to this directory.
+#html_theme_path = []
+
+# The name for this set of Sphinx documents.  If None, it defaults to
+# "<project> v<release> documentation".
+#html_title = None
+
+# A shorter title for the navigation bar.  Default is the same as html_title.
+#html_short_title = None
+
+# The name of an image file (relative to this directory) to place at the top
+# of the sidebar.
+#html_logo = None
+
+# The name of an image file (within the static path) to use as favicon of the
+# docs.  This file should be a Windows icon file (.ico) being 16x16 or 32x32
+# pixels large.
+#html_favicon = None
+
+# Add any paths that contain custom static files (such as style sheets) here,
+# relative to this directory. They are copied after the builtin static files,
+# so a file named "default.css" will overwrite the builtin "default.css".
+html_static_path = ['_static']
+
+# Add any extra paths that contain custom files (such as robots.txt or
+# .htaccess) here, relative to this directory. These files are copied
+# directly to the root of the documentation.
+#html_extra_path = []
+
+# If not '', a 'Last updated on:' timestamp is inserted at every page bottom,
+# using the given strftime format.
+#html_last_updated_fmt = '%b %d, %Y'
+
+# If true, SmartyPants will be used to convert quotes and dashes to
+# typographically correct entities.
+#html_use_smartypants = True
+
+# Custom sidebar templates, maps document names to template names.
+#html_sidebars = {}
+
+# Additional templates that should be rendered to pages, maps page names to
+# template names.
+#html_additional_pages = {}
+
+# If false, no module index is generated.
+#html_domain_indices = True
+
+# If false, no index is generated.
+#html_use_index = True
+
+# If true, the index is split into individual pages for each letter.
+#html_split_index = False
+
+# If true, links to the reST sources are added to the pages.
+#html_show_sourcelink = True
+
+# If true, "Created using Sphinx" is shown in the HTML footer. Default is True.
+#html_show_sphinx = True
+
+# If true, "(C) Copyright ..." is shown in the HTML footer. Default is True.
+#html_show_copyright = True
+
+# If true, an OpenSearch description file will be output, and all pages will
+# contain a <link> tag referring to it.  The value of this option must be the
+# base URL from which the finished HTML is served.
+#html_use_opensearch = ''
+
+# This is the file name suffix for HTML files (e.g. ".xhtml").
+#html_file_suffix = None
+
+# Output file base name for HTML help builder.
+htmlhelp_basename = 'PyDruiddoc'
+
+
+# -- Options for LaTeX output ---------------------------------------------
+
+latex_elements = {
+    # The paper size ('letterpaper' or 'a4paper').
+    #'papersize': 'letterpaper',
+
+    # The font size ('10pt', '11pt' or '12pt').
+    #'pointsize': '10pt',
+
+    # Additional stuff for the LaTeX preamble.
+    #'preamble': '',
+}
+
+# Grouping the document tree into LaTeX files. List of tuples
+# (source start file, target name, title,
+#  author, documentclass [howto, manual, or own class]).
+latex_documents = [
+    ('index', 'PyDruid.tex', u'PyDruid Documentation',
+     u'Deep Ganguli', 'manual'),
+]
+
+# The name of an image file (relative to this directory) to place at the top of
+# the title page.
+#latex_logo = None
+
+# For "manual" documents, if this is true, then toplevel headings are parts,
+# not chapters.
+#latex_use_parts = False
+
+# If true, show page references after internal links.
+#latex_show_pagerefs = False
+
+# If true, show URL addresses after external links.
+#latex_show_urls = False
+
+# Documents to append as an appendix to all manuals.
+#latex_appendices = []
+
+# If false, no module index is generated.
+#latex_domain_indices = True
+
+
+# -- Options for manual page output ---------------------------------------
+
+# One entry per manual page. List of tuples
+# (source start file, name, description, authors, manual section).
+man_pages = [
+    ('index', 'pydruid', u'PyDruid Documentation',
+     [u'Deep Ganguli'], 1)
+]
+
+# If true, show URL addresses after external links.
+#man_show_urls = False
+
+
+# -- Options for Texinfo output -------------------------------------------
+
+# Grouping the document tree into Texinfo files. List of tuples
+# (source start file, target name, title, author,
+#  dir menu entry, description, category)
+texinfo_documents = [
+    ('index', 'PyDruid', u'PyDruid Documentation',
+     u'Deep Ganguli', 'PyDruid', 'One line description of project.',
+     'Miscellaneous'),
+]
+
+# Documents to append as an appendix to all manuals.
+#texinfo_appendices = []
+
+# If false, no module index is generated.
+#texinfo_domain_indices = True
+
+# How to display URL addresses: 'footnote', 'no', or 'inline'.
+#texinfo_show_urls = 'footnote'
+
+# If true, do not generate a @detailmenu in the "Top" node's menu.
+#texinfo_no_detailmenu = False
diff --git a/docs/source/index.rst b/docs/source/index.rst
new file mode 100644
index 00000000..d60912b5
--- /dev/null
+++ b/docs/source/index.rst
@@ -0,0 +1,25 @@
+.. PyDruid documentation master file, created by
+   sphinx-quickstart on Mon Mar  3 16:38:17 2014.
+   You can adapt this file completely to your liking, but it should at least
+   contain the root `toctree` directive.
+
+Welcome to PyDruid's documentation!
+===================================
+
+Contents:
+
+.. toctree::
+   :maxdepth: 2
+
+.. automodule:: pydruid
+ 
+.. autoclass:: client.PyDruid
+    :members:
+
+Indices and tables
+==================
+
+* :ref:`genindex`
+* :ref:`modindex`
+* :ref:`search`
+
diff --git a/pydruid/client.py b/pydruid/client.py
index c93b4a7c..d320322a 100755
--- a/pydruid/client.py
+++ b/pydruid/client.py
@@ -29,6 +29,74 @@
 
 
 class PyDruid:
+    """
+    PyDruid exposes a simple API for creating and executing Druid queries. PyDruid also exposes
+    a method for exporting query results into pandas.DataFrame objects for subsequent analysis
+    with the python scientific computing stack, or simply exporting query results to a TSV file
+    for analysis with your favorite tool, e.g., R, Julia, Matlab, Excel.
+
+    :param str url: URL of Bard node in the Druid cluster
+    :param str endpoint: Endpoint that Bard listens for queries on
+
+    :ivar str result_json: JSON object representing a query result. Initial value: None
+    :ivar list result: Query result parsed into a list of dicts. Initial value: None
+    :ivar str query_type: Name of most recently run query, e.g., topN. Initial value: None
+    :ivar dict query_dict: JSON object representing the query. Initial value: None
+
+    Example
+
+    .. code-block:: python
+        :linenos:
+
+            >>> from pydruid.client import *
+
+            >>> query = PyDruid('http://localhost:8083', 'druid/v2/')
+
+            >>> top = query.topn(
+                    datasource='twitterstream',
+                    granularity='all',
+                    intervals='2013-10-04/pt1h',
+                    aggregations={"count": doublesum("count")},
+                    dimension='user_name',
+                    filter = Dimension('user_lang') == 'en',
+                    metric='count',
+                    threshold=2
+                )
+
+            >>> print json.dumps(query.query_dict, indent=2)
+            >>> {
+                  "metric": "count",
+                  "aggregations": [
+                    {
+                      "type": "doubleSum",
+                      "fieldName": "count",
+                      "name": "count"
+                    }
+                  ],
+                  "dimension": "user_name",
+                  "filter": {
+                    "type": "selector",
+                    "dimension": "user_lang",
+                    "value": "en"
+                  },
+                  "intervals": "2013-10-04/pt1h",
+                  "dataSource": "twitterstream",
+                  "granularity": "all",
+                  "threshold": 2,
+                  "queryType": "topN"
+                }
+
+            >>> print query.result
+            >>> [{'timestamp': '2013-10-04T00:00:00.000Z',
+                'result': [{'count': 7.0, 'user_name': 'user_1'}, {'count': 6.0, 'user_name': 'user_2'}]}]
+
+            >>> df = query.export_pandas()
+            >>> print df
+            >>>    count                 timestamp      user_name
+                0      7  2013-10-04T00:00:00.000Z         user_1
+                1      6  2013-10-04T00:00:00.000Z         user_2
+    """
+
     def __init__(self, url, endpoint):
         self.url = url
         self.endpoint = endpoint
@@ -37,7 +105,7 @@ def __init__(self, url, endpoint):
         self.query_type = None
         self.query_dict = None
 
-    def post(self, query):
+    def __post(self, query):
         try:
             querystr = json.dumps(query)
             if self.url.endswith('/'):
@@ -54,10 +122,10 @@ def post(self, query):
             raise IOError('{0} \n Query is: {1}'.format(
                 e, json.dumps(self.query_dict, indent=4)))
         else:
-            self.result = self.parse()
+            self.result = self.__parse()
             return self.result
 
-    def parse(self):
+    def __parse(self):
         if self.result_json:
             res = json.loads(self.result_json)
             return res
@@ -68,12 +136,43 @@ def parse(self):
     # --------- Export implementations ---------
 
     def export_tsv(self, dest_path):
+        """
+        Export the current query result to a tsv file.
+
+        :param str dest_path: file to write query results to
+        :raise NotImplementedError:
+
+        Example
+
+        .. code-block:: python
+            :linenos:
+
+                >>> top = query.topn(
+                        datasource='twitterstream',
+                        granularity='all',
+                        intervals='2013-10-04/pt1h',
+                        aggregations={"count": doublesum("count")},
+                        dimension='user_name',
+                        filter = Dimension('user_lang') == 'en',
+                        metric='count',
+                        threshold=2
+                    )
+
+                >>> query.export_tsv('top.tsv')
+                >>> !cat top.tsv
+                >>> count	user_name	timestamp
+                    7.0	user_1	2013-10-04T00:00:00.000Z
+                    6.0	user_2	2013-10-04T00:00:00.000Z
+        """
         f = open(dest_path, 'wb')
         tsv_file = csv.writer(f, delimiter='\t')
 
         if self.query_type == "timeseries":
             header = self.result[0]['result'].keys()
             header.append('timestamp')
+        if self.query_type == 'topN':
+            header = self.result[0]['result'][0].keys()
+            header.append('timestamp')
         elif self.query_type == "groupBy":
             header = self.result[0]['event'].keys()
             header.append('timestamp')
@@ -105,6 +204,35 @@ def export_tsv(self, dest_path):
         f.close()
 
     def export_pandas(self):
+        """
+        Export the current query result to a Pandas DataFrame object.
+
+        :return: The DataFrame representing the query result
+        :rtype: DataFrame
+        :raise NotImplementedError:
+
+        Example
+
+        .. code-block:: python
+            :linenos:
+
+                >>> top = query.topn(
+                        datasource='twitterstream',
+                        granularity='all',
+                        intervals='2013-10-04/pt1h',
+                        aggregations={"count": doublesum("count")},
+                        dimension='user_name',
+                        filter = Dimension('user_lang') == 'en',
+                        metric='count',
+                        threshold=2
+                    )
+
+                >>> df = query.export_pandas()
+                >>> print df
+                >>>    count                 timestamp      user_name
+                    0      7  2013-10-04T00:00:00.000Z         user_1
+                    1      6  2013-10-04T00:00:00.000Z         user_2
+        """
         if self.result:
             if self.query_type == "timeseries":
                 nres = [v['result'].items() + [('timestamp', v['timestamp'])]
@@ -143,93 +271,225 @@ def build_query(self, args):
         query_dict = {'queryType': self.query_type}
 
         for key, val in args.iteritems():
-            if key == "aggregations":
+            if key == 'aggregations':
                 query_dict[key] = build_aggregators(val)
-            elif key == "postAggregations":
-                query_dict[key] = build_post_aggregators(val)
+            elif key == 'post_aggregations':
+                query_dict['postAggregations'] = Postaggregator.build_post_aggregators(val)
+            elif key == 'datasource':
+                query_dict['dataSource'] = val
             elif key == "filter":
-                query_dict[key] = build_filter(val)
+                query_dict[key] = Filter.build_filter(val)
             else:
                 query_dict[key] = val
 
         self.query_dict = query_dict
 
-    def topn(self, **args):
+    def topn(self, **kwargs):
         """
         A TopN query returns a set of the values in a given dimension, sorted by a specified metric. Conceptually, a
         topN can be thought of as an approximate GroupByQuery over a single dimension with an Ordering spec. TopNs are
         faster and more resource efficient than GroupBy for this use case.
 
-        :param args: key word arguments discussed below
-        :return: a dict representing the query result
-
-        Required key/values are:
+        Required key/value pairs:
 
-        dataSource:         A string that defines the data source to query
-        granularity:        A string that defines how data gets aggregated by hour, day, minute, etc.,
-        intervals:          A string or list of strings that represent ISO-8601 Intervals for which to run the query on
-        aggregations:       A dict with string key = 'aggregator_name', and value = one of the pydruid.utils.aggregators
-        dimension:          A string that defines which dimension to run the query against
-        metric:             A string that defines the metric over which to sort the specified dimension by
-        threshold:          An integer defining how many of the top items to return
+        :param str datasource: Data source to query
+        :param str granularity: Aggregate data by hour, day, minute, etc.,
+        :param intervals: ISO-8601 intervals of data to query
+        :type intervals: str or list
+        :param dict aggregations: A map from aggregator name to one of the pydruid.utils.aggregators e.g., doublesum
+        :param str dimension: Dimension to run the query against
+        :param str metric: Metric over which to sort the specified dimension by
+        :param int threshold: How many of the top items to return
 
-        Optional key/values are:
+        :return: The query result
+        :rtype: list[dict]
 
-        filter:             A pydruid.utils.filters.Filter object indicating which rows of data to include in the query
-        postAggregations:   A dict with string key = 'post_aggregator_name', and value pydruid.utils.PostAggregator
+        Optional key/value pairs:
 
+        :param pydruid.utils.filters.Filter filter: Indicates which rows of data to include in the query
+        :param post_aggregations:   A dict with string key = 'post_aggregator_name', and value pydruid.utils.PostAggregator
 
         Example:
 
-        >> top = query.topn(dataSource='my_data',
-                            granularity='hour',
-                            intervals='["2013-06-14/pt2h"]',
-                            aggregations={"count": doubleSum("count")},
-                            dimension='my_dimension',
+        .. code-block:: python
+            :linenos:
+
+                >>> top = query.topn(
+                            datasource='twitterstream',
+                            granularity='all',
+                            intervals='2013-06-14/pt1h',
+                            aggregations={"count": doublesum("count")},
+                            dimension='user_name',
                             metric='count',
-                            threshold= 5
-                            )
+                            filter=Dimension('user_lang') == 'en',
+                            threshold=1
+                        )
+                >>> print top
+                >>> [{'timestamp': '2013-06-14T00:00:00.000Z', 'result': [{'count': 22.0, 'user': "cool_user"}}]}]
         """
         self.query_type = 'topN'
         valid_parts = [
-            'dataSource', 'granularity', 'filter', 'aggregations',
-            'postAggregations', 'intervals', 'dimension', 'threshold',
+            'datasource', 'granularity', 'filter', 'aggregations',
+            'post_aggregations', 'intervals', 'dimension', 'threshold',
             'metric'
         ]
-        self.validate_query(valid_parts, args)
-        self.build_query(args)
-        return self.post(self.query_dict)
+        self.validate_query(valid_parts, kwargs)
+        self.build_query(kwargs)
+        return self.__post(self.query_dict)
+
+    def timeseries(self, **kwargs):
+        """
+        A timeseries query returns the values of the requested metrics (in aggregate) for each timestamp.
+
+        Required key/value pairs:
+
+        :param str datasource: Data source to query
+        :param str granularity: Time bucket to aggregate data by hour, day, minute, etc.,
+        :param intervals: ISO-8601 intervals for which to run the query on
+        :type intervals: str or list
+        :param dict aggregations: A map from aggregator name to one of the pydruid.utils.aggregators e.g., doublesum
+
+        :return: The query result
+        :rtype: list[dict]
 
-    def timeseries(self, **args):
+        Optional key/value pairs:
+
+        :param pydruid.utils.filters.Filter filter: Indicates which rows of data to include in the query
+        :param post_aggregations:   A dict with string key = 'post_aggregator_name', and value pydruid.utils.PostAggregator
+
+        Example:
+
+        .. code-block:: python
+            :linenos:
+
+                >>> counts = query.timeseries(
+                        datasource=twitterstream,
+                        granularity='hour',
+                        intervals='2013-06-14/pt1h',
+                        aggregations={"count": doublesum("count"), "rows": count("rows")},
+                        post_aggregations={'percent': (Field('count') / Field('rows')) * Const(100))}
+                    )
+                >>> print counts
+                >>> [{'timestamp': '2013-06-14T00:00:00.000Z', 'result': {'count': 9619.0, 'rows': 8007, 'percent': 120.13238416385663}}]
+        """
         self.query_type = 'timeseries'
         valid_parts = [
-            'dataSource', 'granularity', 'filter', 'aggregations',
-            'postAggregations', 'intervals'
+            'datasource', 'granularity', 'filter', 'aggregations',
+            'post_aggregations', 'intervals'
         ]
-        self.validate_query(valid_parts, args)
-        self.build_query(args)
-        return self.post(self.query_dict)
+        self.validate_query(valid_parts, kwargs)
+        self.build_query(kwargs)
+        return self.__post(self.query_dict)
+
+    def groupby(self, **kwargs):
+        """
+        A group-by query groups a results set (the requested aggregate metrics) by the specified dimension(s).
+
+        Required key/value pairs:
+
+        :param str datasource: Data source to query
+        :param str granularity: Time bucket to aggregate data by hour, day, minute, etc.,
+        :param intervals: ISO-8601 intervals for which to run the query on
+        :type intervals: str or list
+        :param dict aggregations: A map from aggregator name to one of the pydruid.utils.aggregators e.g., doublesum
+        :param list dimensions: The dimensions to group by
+
+        :return: The query result
+        :rtype: list[dict]
+
+        Optional key/value pairs:
+
+        :param pydruid.utils.filters.Filter filter: Indicates which rows of data to include in the query
+        :param post_aggregations:   A dict with string key = 'post_aggregator_name', and value pydruid.utils.PostAggregator
+
+        Example:
+
+        .. code-block:: python
+            :linenos:
+
+                >>> group = query.groupby(
+                        dataSource='twitterstream',
+                        granularity='hour',
+                        intervals='2013-10-04/pt1h',
+                        dimensions=["user_name", "reply_to_name"],
+                        filter=~(Dimension("reply_to_name") == "Not A Reply"),
+                        aggregations={"count": doublesum("count")}
+                    )
+                >>> for k in range(2):
+                    ...     print group[k]
+                >>> {'timestamp': '2013-10-04T00:00:00.000Z', 'version': 'v1', 'event': {'count': 1.0, 'user_name': 'user_1', 'reply_to_name': 'user_2'}}
+                >>> {'timestamp': '2013-10-04T00:00:00.000Z', 'version': 'v1', 'event': {'count': 1.0, 'user_name': 'user_2', 'reply_to_name': 'user_3'}}
+        """
 
-    def groupby(self, **args):
         self.query_type = 'groupBy'
         valid_parts = [
-            'dataSource', 'granularity', 'filter', 'aggregations',
-            'postAggregations', 'intervals', 'dimensions'
+            'datasource', 'granularity', 'filter', 'aggregations',
+            'post_aggregations', 'intervals', 'dimensions'
         ]
-        self.validate_query(valid_parts, args)
-        self.build_query(args)
-        return self.post(self.query_dict)
-
-    def segment_metadata(self, **args):
-        self.query_type = 'segmentMetaData'
-        valid_parts = ['dataSource', 'intervals']
-        self.validate_query(valid_parts, args)
-        self.build_query(args)
-        return self.post(self.query_dict)
-
-    def time_boundary(self, **args):
+        self.validate_query(valid_parts, kwargs)
+        self.build_query(kwargs)
+        return self.__post(self.query_dict)
+
+    def segment_metadata(self, **kwargs):
+        """
+        A segment meta-data query returns per segment information about:
+
+        * Cardinality of all the columns present
+        * Column type
+        * Estimated size in bytes
+        * Estimated size in bytes of each column
+        * Interval the segment covers
+        * Segment ID
+
+        Required key/value pairs:
+
+        :param str datasource: Data source to query
+        :param intervals: ISO-8601 intervals for which to run the query on
+        :type intervals: str or list
+
+        :return: The query result
+        :rtype: list[dict]
+
+        Example:
+
+        .. code-block:: python
+            :linenos:
+
+                >>> meta = query.segment_metadata(datasource='twitterstream', intervals = '2013-10-04/pt1h')
+                >>> print meta[0].keys()
+                >>> ['intervals', 'id', 'columns', 'size']
+                >>> print meta[0]['columns']['tweet_length']
+                >>> {'errorMessage': None, 'cardinality': None, 'type': 'FLOAT', 'size': 30908008}
+
+        """
+        self.query_type = 'segmentMetadata'
+        valid_parts = ['datasource', 'intervals']
+        self.validate_query(valid_parts, kwargs)
+        self.build_query(kwargs)
+        return self.__post(self.query_dict)
+
+    def time_boundary(self, **kwargs):
+        """
+        A time boundary query returns the min and max timestamps present in a data source.
+
+        Required key/value pairs:
+
+        :param str datasource: Data source to query
+
+        :return: The query result
+        :rtype: list[dict]
+
+        Example:
+
+        .. code-block:: python
+            :linenos:
+
+                >>> bound = query.time_boundary(datasource='twitterstream')
+                >>> print bound
+                >>> [{'timestamp': '2011-09-14T15:00:00.000Z', 'result': {'minTime': '2011-09-14T15:00:00.000Z', 'maxTime': '2014-03-04T23:44:00.000Z'}}]
+        """
         self.query_type = 'timeBoundary'
-        valid_parts = ['dataSource']
-        self.validate_query(valid_parts, args)
-        self.build_query(args)
-        return self.post(self.query_dict)
+        valid_parts = ['datasource']
+        self.validate_query(valid_parts, kwargs)
+        self.build_query(kwargs)
+        return self.__post(self.query_dict)
diff --git a/pydruid/utils/filters.py b/pydruid/utils/filters.py
index ecfde90c..053bb4b1 100644
--- a/pydruid/utils/filters.py
+++ b/pydruid/utils/filters.py
@@ -53,6 +53,10 @@ def __or__(self, x):
     def __invert__(self):
         return Filter(type="not", field=self.filter['filter'])
 
+    @staticmethod
+    def build_filter(filter_obj):
+        return filter_obj.filter['filter']
+
 
 class Dimension:
     def __init__(self, dim):
@@ -61,6 +65,3 @@ def __init__(self, dim):
     def __eq__(self, other):
         return Filter(dimension=self.dimension, value=other)
 
-
-def build_filter(filter_obj):
-    return filter_obj.filter['filter']
diff --git a/pydruid/utils/postaggregator.py b/pydruid/utils/postaggregator.py
index c1837bc4..c6dd5e3a 100644
--- a/pydruid/utils/postaggregator.py
+++ b/pydruid/utils/postaggregator.py
@@ -43,6 +43,15 @@ def __div__(self, other):
     def fields(self, other):
         return [self.post_aggregator, other.post_aggregator]
 
+    @staticmethod
+    def build_post_aggregators(postaggs):
+        def rename_postagg(new_name, post_aggregator):
+            post_aggregator['name'] = new_name
+            return post_aggregator
+
+        return [rename_postagg(new_name, postagg.post_aggregator)
+                for (new_name, postagg) in postaggs.iteritems()]
+
 
 class Field(Postaggregator):
     def __init__(self, name):
@@ -62,13 +71,3 @@ def __init__(self, value, output_name=None):
         Postaggregator.__init__(self, None, None, name)
         self.post_aggregator = {
             'type': 'constant', 'name': name, 'value': value}
-
-
-def build_post_aggregators(postaggs):
-    return [rename_postagg(new_name, postagg.post_aggregator)
-            for (new_name, postagg) in postaggs.iteritems()]
-
-
-def rename_postagg(new_name, post_aggregator):
-    post_aggregator['name'] = new_name
-    return post_aggregator