This contains multiple bug fixes that could not be cherry-picked
individually due to a backward incompatible change in novaclient.
This contains the following commits:
- 3323632 One place missed
- de42ea8 Removed use of older-version response status checking
from nova + mgm code, replaced with requests-bas
- 739413f Re-enable pyflakes.
- 8316e49 Fix tests directory for Debian packaging
- cda6f89 Fixed minor typo in pool_mgm --help output
Change-Id: I41fadb7f908250262fe082ca39c47f409750909e