Adding patio error emit on connection errors

Adding patio error event on connection errors.

Locking down comb proxy dep

• Lowering comb-proxy dependency so it won't install new 1.0 version.

Node 4-5 Support

Adding Node 4 and 5 support.

v0.9.5

• Remove id key from being created in a JsonArray
• Add table inheritance for Postgres

v0.9.3

• Allow for literal in dataset from clause

v0.9.2

• Updated comb version

v0.9.1

• Updated pg module
• Fixed issue where connection would hang in postgres adapter

v0.9.0

• Fixed issue with time db type in postgres adapter
• Added grunt
• Updated dependencies for mysql and postgres
• Added support for setting batchSize and highWaterMark when using the stream dataset method

v0.8.1

• Added Array support for JSON datatypes.

v0.7.0

• Fix for issue #121 added the table name to the error thrown.
• Merged #120 this allows tables registered with DB to be looked up properly.
  • This will break any getModel call where a table with the same name is added twice.
• Added documentation about running tests.