Fix PEP8 issues and incorrect version/release details
Fix PEP8 issues and incorrect version/release details

Change-Id: Ia54c7c717e7347cf9d2241aa5ceb98e83c4615af

StackStorm/python-mistralclient,StackStorm/python-mistralclient,openstack/python-mistralclient,openstack/python-mistralclient