Add tripleo-heat-elements repo.

Change-Id: I8206fcbfa5fd88cba36e43e4ef2f4bceb0c74b71
Reviewed-on: https://review.openstack.org/32531
Reviewed-by: Monty Taylor <mordred@inaugust.com>
Reviewed-by: Dan Prince <dprince@redhat.com>
Reviewed-by: Clark Boylan <clark.boylan@gmail.com>
Reviewed-by: James E. Blair <corvus@inaugust.com>
Reviewed-by: Jeremy Stanley <fungi@yuggoth.org>
Approved: Clark Boylan <clark.boylan@gmail.com>
Tested-by: Jenkins
Add bindep.

Change-Id: I5a9ab25086416c0421415146b4993141a1ad9f5b
Reviewed-on: https://review.openstack.org/32532
Reviewed-by: Clark Boylan <clark.boylan@gmail.com>
Reviewed-by: James E. Blair <corvus@inaugust.com>
Reviewed-by: Jeremy Stanley <fungi@yuggoth.org>
Approved: Clark Boylan <clark.boylan@gmail.com>
Tested-by: Jenkins