Fixes an issue with Rackspace tenant IDs and Swift regions. Also fixes tests that simply do not work with certain Rackspace/OpenStack implementations.

Closes-Bug: 1312678
Change-Id: I794db05f612874748fd05a3c38dceb7552699071
Merge "Fixes an issue with Rackspace tenant IDs and Swift regions. Also fixes tests that simply do not work with certain Rackspace/OpenStack implementations."