Add support for elasticsearch cluster.

We need to expand our elasticsearch install base. Update puppet to make
this possible.

Change-Id: Id0dae839b12ebf47715cf40a363832e0f661a94f
Reviewed-on: https://review.openstack.org/33910
Reviewed-by: Jeremy Stanley <fungi@yuggoth.org>
Reviewed-by: James E. Blair <corvus@inaugust.com>
Approved: Clark Boylan <clark.boylan@gmail.com>
Tested-by: Jenkins