Updated openstack/openstack
Project: openstack/ceilometer  c290ed8f371d9aaeeef54abb3bf503f8f0526284

ensure unique pipeline names

for notification agent coordination, we requeue items based on the
pipeline name. to ensure we have correct queues for pipeline, we
should make sure pipeline names are unique.

Change-Id: I1b3e7cf1206fd11ab7fde15233cdd19416322acc
Implements: blueprint notification-coordination