Updated openstack/openstack
Project: openstack/neutron  08988c2d7d838e75e2981d23772e18cb9c2785e5
null
Replace mox in unit tests with mock

blueprint remove-mox

Removing mox from test-requirements.txt will be done in another patch
because stubout module is a part of mox and it is used in several modules.

Change-Id: I9370e8da815d2234a032a8875da73a86d4126d46