run.sh: Fix critical error when skipping tags

Change-Id: I8bf751aded638286de877b82a248040d440d8802
workaround for rabbitmq-server on rhel7, /var/run/rabbitmq

Change-Id: Ibf403ae6142d5c7e1e813401a20053d55a20c504
settings.py

Change-Id: I22449642ee7929a078606a34e875ebe658a468dc
Fixes

Change-Id: Id36496aa8f26b78acb8ba70f3f50837a94f1fb7f
Fixes

Change-Id: Ie4a43ff69477e5d8e8190cd0d5609274bd86250b
run.sh: fix parsing args

Change-Id: I02b19863636a5e239a1c2ab11d0fff37f3431f86
settings.py: fix tempest settings generation

Change-Id: I21719b02516fe9722b6f1e586d8684e531366f0e