Try to update keystone endpoints when needed (bnc#765693)

By comparing the various endpoint URLs the :add_endpoint_template
action in the keystone_register provider will try to determine if
an endpoint needs to be updated.
Merge pull request #39 from galthaus/pull-req-release-fred-master-2bcd4bf5b7

Pull in some of the SUSE Fixes [9/13]