auth 2.0 support in swift/common/client.py

[Chmouel Boudjnah]

There is a git review for the swift cli to support auth 2.0 but swift/common/client.py would need to have it as well.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/3680

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/4893

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/4893
Committed: http://github.com/openstack/swift/commit/4f93c5d5e48a22ff6df882f9d26f71ab40e47ee4
Submitter: Jenkins
Branch: master

commit 4f93c5d5e48a22ff6df882f9d26f71ab40e47ee4
Author: Chmouel Boudjnah <email address hidden>
Date: Sun Mar 4 15:46:55 2012 +0000

    Update swift.common.client with bin/swift changes.

    - Add auth version 2 to swift.common.client.
    - Remove ununsed imports.
    - Fix bug where auth_version should be a string.
    - Add test for auth version 2.
    - Allow to override the returns of http_connection for tests.
    - Sync the passing of headers in bin/swift as well from client.
    - Fixes bug 885011
    - Previously it was review 3680 but abandoned.
    - Address: Maru newby review.
    - TODO: properly test auth_v1.

    Change-Id: I579d8154828e892596fae9ab75f69d353f15e12c