Lost most of the day to creating xfail and skip for gabbi.

This is necessary because whenever I sit down to write new tests for something, there are so many things that are behaving incorrectly I need some way to continue writing the tests without making TODO comments all over the place.

The proximate cause was building alarms test cases for ceilometer and discovering that the way the controllers are implemented means that it is unable to 405 properly when getting an inappropriate method.

Slope

• confirm the feature above and merge and release
• go back to the alarm tests and gabbi, wielding the new found power of the new features