Fix some pep8 issues in doc/ext/cinder_todo.py and
doc/source/conf.py and make the code looks pretty.
Change-Id: Ie164bc7328507e20b0ab5993ba97eaadbd74bf63
The docs job wasn't working because of an un-renamed file.
Coverage wasn't running in jenkins with the xml output file.
Remove the .cache.bundle support that we're moving away from.
Change-Id: I1140baa53dee8b14ac4d1f8549425a0fdd7a8425