* Wrap openstack.Client in an interface.
* Alternate openstack Driver creation method.
* Register the Rackspace driver in commands.go.
Signed-off-by: Ash Wilson <ash.wilson@rackspace.com>
When sourcing an OpenStack rc file, both variables OS_TENANT_ID
and OS_TENANT_NAME are defined.
Signed-off-by: Vincent Giersch <vincent.giersch@ovh.net>