Implementation of Rackspace token based authentication for the Openstack API. 
Implementation of Rackspace token based authentication for the Openstack API. 

This is a re-proposal of a merge earlier that was failing to merge no matter what I tried, so this is the next option in a series of failures. All tests pass locally. 
rajarammallya/melange,rajarammallya/melange,rackerlabs/melange,openstack-attic/melange,rackerlabs/melange,rajarammallya/melange,openstack-attic/melange,openstack-attic/melange,rackerlabs/melange