Bug Fixes, Various Error Handling Improvements

PR's included in the milestone can be found here: https://github.com/channelcat/sanic/milestone/1?closed=1

Changes:

• Addition of Python 3.6 to tox tests and travis tests (We will eventually be using the tox.ini as our main travis testing script as well)
• New raising of error if an invalid response is returned
• Add in a way to encode objects that are un-encodable in response objects

Adding HTTPMethodView

Changelog:

• Added HTTPMethodView #167
• Added shared request storage #163
• Changed request timeout process #172
• Provide a default app name #159

Static files

Changelog:

• Static file support
• Lazy Cookie Setting (slight speed improvement when not setting cookies)

0.1.5

Changelog:

• Cookies
• Blueprint listeners and ordering
• Faster Router
• Fix: Incomplete file reads on medium+ sized post requests

Breaking:

• after_start and before_stop now pass sanic as their first argument. Current event listeners will need to be updated to accept the new argument