Make url_pattern optional.

Change-Id: Iadd7e7f22fa31282d820bac12ba00c8f94cb8369
Reviewed-on: https://review.openstack.org/11941
Reviewed-by: Clark Boylan <clark.boylan@gmail.com>
Approved: James E. Blair <corvus@inaugust.com>
Tested-by: Jenkins
1 file changed