Set version from 2.7 to 2012.1 to match the other OpenStack
Keystone deliveries (python-keystoneclient will be released
as part of Keystone 2012.1~e3). Also adjusted the location
of the git repository to match new location. Fixes bug 917656.
Change-Id: I4d8d071e3cdc5665e29a89067958f5f1e8964221