This change starts setting up mirrored queues by default.
If there is only one rabbitmq pod present this will still
work, though will cause some performance overhead.
Depends-On: https://review.openstack.org/617812
Depends-On: https://review.openstack.org/617817
Change-Id: I8982aed699185f9b7fb4962e108eb76377643f25
Vladyslav Drok