Sahara doesn't work with keystonemiddleware==1.0.0

[Sergey Reshetnyak]

Steps to repro:
1. Install Sahara with keystonemiddleware==1.0.0
2. Start Sahara

ERROR:
2014-09-18 05:17:03.915 5058 CRITICAL sahara [-] AttributeError: 'AuthProtocol' object has no attribute '_identity_server'
2014-09-18 05:17:03.915 5058 TRACE sahara Traceback (most recent call last):
2014-09-18 05:17:03.915 5058 TRACE sahara File "/usr/bin/sahara-all", line 10, in <module>
2014-09-18 05:17:03.915 5058 TRACE sahara sys.exit(main())
2014-09-18 05:17:03.915 5058 TRACE sahara File "/usr/lib/python2.7/dist-packages/sahara/cli/sahara_all.py", line 56, in main
2014-09-18 05:17:03.915 5058 TRACE sahara app = server.make_app()
2014-09-18 05:17:03.915 5058 TRACE sahara File "/usr/lib/python2.7/dist-packages/sahara/main.py", line 151, in make_app
2014-09-18 05:17:03.915 5058 TRACE sahara app.wsgi_app = acl.wrap(app.wsgi_app, CONF)
2014-09-18 05:17:03.915 5058 TRACE sahara File "/usr/lib/python2.7/dist-packages/sahara/api/acl.py", line 38, in wrap
2014-09-18 05:17:03.915 5058 TRACE sahara AUTH_URI = auth_protocol._identity_server.auth_uri
2014-09-18 05:17:03.915 5058 TRACE sahara AttributeError: 'AuthProtocol' object has no attribute '_identity_server'
2014-09-18 05:17:03.915 5058 TRACE sahara

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/122392

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/122392
Committed: https://git.openstack.org/cgit/openstack/sahara/commit/?id=d2058585160a99b7e7908fcf1066bbb9ef4102a6
Submitter: Jenkins
Branch: master

commit d2058585160a99b7e7908fcf1066bbb9ef4102a6
Author: Sergey Reshetnyak <email address hidden>
Date: Thu Sep 18 15:49:34 2014 +0400

    Use 'auth_uri' parameter from config

    Change-Id: I0276d30d8e142dca120915a8c91a500159a353d3
    Closes-bug: #1371012