Updated openstack/openstack
Project: openstack/keystone  8e10429d34ed0d6dee3948eb918d388c99e24dd1
null
Moves common RestfulTestCase to it's own module.

This is in preparation for larger refactorings to make the test suite
faster and easier to understand.

Change-Id: I86d5be0324cca744b3109989815ef1dc720d1f8c