Updated openstack/openstack
Project: openstack/keystone  903c7565d63b89c5d788ecd7fb930255423e37f1
null
Fix catalog Driver signatures

The 'hints' parameter was missing from the base catalog Driver.
The 'hints' parameter is required for all the subclasses and the
manager requires it, so it should be specified in the base class.

Change-Id: I3e7d84b671468c064d6bb3b2828ce4a03fdd620b