Updated openstack/openstack
Project: openstack/ceilometer  f509623e32bfbff1a27eaa07675bbec0662305aa
null
Fix failing nova_tests tests

Mock also compute.conductor_api.instance_destroy() to return an instance
instead of a MagickMock object.

Change-Id: I518e063abfdd568f7d9ef970bc371eced2198adf