Merge "Add nova client support for nova-manage agent command"

Merge "Remove unnecessary casts in flavor create."

Merge "Show volume and snapshot data on create"

Merge "Fix PEP8 issues."

Merge "Fix image-create --poll race-condition."

Releasing a 2.6.10 version bump to PyPI.

Releasing 2.6.1.

Release 2.6.0.1 to pypi.

Release of 2.6.0.