Updated openstack/openstack
Project: openstack-dev/devstack  e54a2b5057823b44af66e2f27610f134ad290d16

Save OPENSTACK_KEYSTONE_URL to horizon local_settings

OPENSTACK_KEYSTONE_URL is not saved to local_settings correctly,
this patch fixes this bug.

Change-Id: I4275f035be3d8ab013840d8b5e3f9a5e292a366b