Updated openstack/openstack
Project: openstack/nova  7d6c23a7c2c143b70a2dfd22c63aa64f483524e4

Use auth_token from keystonemiddleware

auth_token middleware in python-keystoneclient is deprecated and has
been moved to the keystonemiddleware repo.

Change-Id: I1aadbe24db63eb2507b088cd53886d7f2e192cab