* All commands now perform their action in take_action(). Those producing
output are derived from DisplayCommandBase.
Change-Id: Ic93ba9a2ad449d84242b6aa8624b41379c4fb79a
Fix several pep8 issues and pin the pep8 test to pep8 version 1.1.
This should prevent future changes from being unmergable by the pep8
gate after a pep8 upgrade.
Change-Id: I4678a9179579fb5c7afe795fb43a8a89a99ad717