Updated openstack/openstack
Project: openstack/python-keystoneclient  3fd8e8f6d063d37074101c9fac55f0bdd8e6150f
null
Update docs for auth_token middleware config options

The documentation for the auth_token middleware config options
was out of date.

Change-Id: I8d03d77c58c714375e1e5174962991aa3adc61af