* Make the Identity client in identity.client.make_client()
* Auth via ClientManager.identity
* Skip extra auth roundtrip in compute client
Change-Id: I0190639e38f83997c233195f6cc27ff3afdfba10
blueprint client-manager
blueprint nova-client
bug 992841
Move the authentication logic into a new ClientManager class so that only commands that need to authenticate will trigger that code.
Implement "list server" and "show server" commands as examples of using the ClientManager, Lister, and ShowOne classes.
Change-Id: I9845b70b33bae4b193dbe41871bf0ca8e286a727