Add tempest, heat, ceilometer to list of projects

Change-Id: I3d0438500288a5c3095052c9e13c3a124a10678f
Reviewed-on: https://review.openstack.org/25917
Approved: Dan Prince <dprince@redhat.com>
Reviewed-by: Dan Prince <dprince@redhat.com>
Tested-by: Jenkins