Adds a wait before utils.launch_heat returns to ensure that the
necessary rabbitmq queues have been created. Without the wait, there is
a race condition between the queues being created and the first
heatclient command being executed, which can lead to a
oslo_messaging.exceptions.MessagingTimeout exception.
Also fixes a minor issue in the choices for the --heat-type option for
overcloud deploy. The choice should be "installed" and not "system".
Change-Id: Ib63813b63c37fa2cee57a211535d43d605131529
Signed-off-by: James Slagle <jslagle@redhat.com>
a35f798390