[client] python33 unit test failures

[Steve McLellan]

The python33 unit tests fail for muranoclient because they use unittest2 which was specifically to backport features to python 2.x and doesn't work with python 3 (in this case because it's using the old exception handling syntax `except Exception, e`). It doesn't appear that the tests use any features from unittest2.

While I don't think we necessarily need to run on python 3, we should tidy up these tests (there are also various places using `assert condition==something` rather than self.assertEquals(condition, something) so that they're more pythonic. It is better to do this sooner than later so that they can be a useful example for more unit tests.

[OpenStack Infra (hudson-openstack)]

Related fix proposed to branch: master
Review: https://review.openstack.org/95453

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/95453
Committed: https://git.openstack.org/cgit/stackforge/python-muranoclient/commit/?id=f39e9ccac2a189eb92a43e8912517a15f0aad774
Submitter: Jenkins
Branch: master

commit f39e9ccac2a189eb92a43e8912517a15f0aad774
Author: Sergey Murashov <email address hidden>
Date: Mon May 26 12:08:27 2014 +0400

    Fix issue with python 3.3 gate job

    Change-Id: Iec40988c71bd5743d8ea90f225ac49b470171952
    Closes-Bug: #1321430