Enforce pep-8

We previously decided to adhere to pep8, but did not reformat all code
to comply, nor did we set up any tests to enforce this.

This reformats code to adhere to pep8 and sets up enforcement through
Tracis-CI.
Update bundled copy of Rocket

Fixes #268
Update bundled copy of Rocket (again)
Merge pull request #267 from zoni/pep8

Enforce pep-8
Merge pull request #270 from zoni/issue/268

Update bundled copy of Rocket
Merge branch 'master' into pytest

Conflicts:
	errbot/backends/test.py
	run_tests.py
	setup.cfg
	tests/webhooks_tests.py