Updated openstack/openstack
Project: openstack/sahara  cd8145730944b9d647445a4b07779bdc11ccbcfc

Use Vanilla 2 plugin for transient checks

Changes:
* move transient test to separate test file
* use vanilla 2 plugin for transient checks
* small refactoring

Change-Id: I9c72919b0211a354f9d9858b840926b9bee36a7e