Updated openstack/openstack
Project: openstack/swift  48a284878533226d77cb9dc45bc6ab8a404236d4
null
Read the configuration once for all func tests

Merge the swift_testing module into the functional test module itself,
so that we can read the configuration once for all unit tests, sharing
the same constraints.

Change-Id: I9fbbfdade9adca329cd79f7d4291ba009327c842