Add contrib to py26 and py27 gates

Change-Id: I6e3792bd1fa7076d51321d788d1c272b178339e1
Closes-Bug: #1251380
Add _() to rackspace resource strings

As part of fix to bug #1249217, all the translation strings were
included in _(), but rackspace resources were ignored.
This change is to fix translation strings in rackspace resources.

Change-Id: I2a422746693136636cc137e2e9cc1bd3a7e6bb01
Closes-Bug: #1261545
Merge "Add contrib to py26 and py27 gates"
Merge "Add _() to rackspace resource strings"