Update PEP8

2.2.0 (2016-11-14)
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Bugs:

* Fixed E305 regression caused by PyCQA#400;
  PyCQA#593

2.1.0 (2016-11-04)
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Changes:

* Report E302 for blank lines before an "async def";
  PyCQA#556
* Update our list of tested and supported Python versions which are 2.6,
  2.7, 3.2, 3.3, 3.4 and 3.5 as well as the nightly Python build and
  PyPy.
* Report E742 and E743 for functions and classes badly named 'l', 'O',
  or 'I'.
* Report E741 on 'global' and 'nonlocal' statements, as well as
  prohibited single-letter variables.
* Deprecated use of `[pep8]` section name in favor of `[pycodestyle]`;
  PyCQA#591

Bugs:

* Fix opt_type AssertionError when using Flake8 2.6.2 and pycodestyle;
  PyCQA#561
* Require two blank lines after toplevel def, class;
  PyCQA#536
* Remove accidentally quadratic computation based on the number of
  colons. This will make pycodestyle faster in some cases;
  PyCQA#314

2.0.0 (2016-05-31)
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Changes:

* Added tox test support for Python 3.5 and pypy3
* Added check E275 for whitespace on `from ... import ...` lines;
  PyCQA#489 / PyCQA#491
* Added W503 to the list of codes ignored by default ignore list;
  PyCQA#498
* Removed use of project level `.pep8` configuration file;
  PyCQA#364

Bugs:

* Fixed bug with treating `~` operator as binary; PyCQA#383
  / PyCQA#384
* Identify binary operators as unary; PyCQA#484 /
  PyCQA#485

1.7.0 (2016-01-12)
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Changes:

* Reverted the fix in PyCQA#368, "options passed on command
  line are only ones accepted" feature. This has many unintended
  consequences in pep8 and flake8 and needs to be reworked when I have
  more time.
* Added support for Python 3.5. (Issue PyCQA#420 &
  PyCQA#459)
* Added support for multi-line config_file option parsing. (Issue
  PyCQA#429)
* Improved parameter parsing. (Issues PyCQA#420 &
  PyCQA#456)

Bugs:

* Fixed BytesWarning on Python 3. (Issue PyCQA#459)