Updated openstack/openstack
Project: openstack/tempest  bb8232f7d59f128f69dd269e5daadbdfbf0b9ad6
null
Refactor duplicate isolated creds code

The code to set the isolated credentials and the client manager
for the compute and volume base test classes was duplicated. The
duplicated code has been moved to tempest.test.BaseTestCase.

Closes-Bug: #1177411
Change-Id: I70aeda46ab9f44a6726b7e1f256ef511a2f84218