config generator using keystoneclient rather than middleware

[Brant Knudson]

The auth_token middleware was moved from keystoneclient.middleware to keystonemiddleware. http://git.openstack.org/cgit/openstack/nova/tree/tools/config/oslo.config.generator.rc should be updated to use keystonemiddleware.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/119646

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/119646
Committed: https://git.openstack.org/cgit/openstack/nova/commit/?id=42464c7879046b73e660ab437d76013dafa4a108
Submitter: Jenkins
Branch: master

commit 42464c7879046b73e660ab437d76013dafa4a108
Author: Brant Knudson <email address hidden>
Date: Sun Sep 7 14:11:50 2014 -0500

    Fix config generator to use keystonemiddleware

    The auth_token middleware was moved from keystoneclient.middleware
    to keystonemiddleware. The config generator is configured to point
    to the new location.

    Closes-Bug: #1366594
    Change-Id: I5543973b2c7ac06c048686c24354ecf6eb251027