Exit if validation fails

Currently, it is still proceeding
which means that the running version can
be updated even when a failure occurs.
Merge pull request #55 from bodepd/exit_on_failed_validation

Exit if validation fails
Added rjil::rabbitmq for contrail dependency

Added rabbitmq management code in rjil::rabbitmq for contrail
dependency.
Use Dan's environment during AT stage
Merge pull request #58 from sorenh/reconcile-environments

Use Dan's environment during AT stage
Merge pull request #57 from hkumarmk/contrail_rabbitmq

Added rjil::rabbitmq as contrail dependency
Added rjil::zookeeper

Added contrail dependency zookeeper. This need hiera entry
'zookeeper::id' which must be unique for each zookeeper servers
in the cluster. So in case of multi-node contrail setup, the hiera config
need to be overridden in clientcert level for those nodes.