python-fuelclient tests always pass

[Aleksandra Fedorova]

From https://fuel-jenkins.mirantis.com/job/verify-python-fuelclient/245/console:

we have failed tox run, but got "Testing python-fuelclient succeeded."

Log snippet:

FAILED (SKIP=1, errors=2)
ERROR: InvocationError: '/home/jenkins/workspace/verify-python-fuelclient/.tox/py27/bin/nosetests -vv --with-xunit --xunit-file /home/jenkins/workspace/verify-python-fuelclient/fuelclient.xml'
___________________________________ summary ____________________________________
ERROR: py26: commands failed
ERROR: py27: commands failed
Doing a clean up.
Testing python-fuelclient succeeded.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/164101

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/164101
Committed: https://git.openstack.org/cgit/stackforge/python-fuelclient/commit/?id=5a29cf0645f9e5afd99a383f3c2919da313d28da
Submitter: Jenkins
Branch: master

commit 5a29cf0645f9e5afd99a383f3c2919da313d28da
Author: Sebastian Kalinowski <email address hidden>
Date: Fri Mar 13 08:59:06 2015 +0100

    Explicitly fail if tox failed in run_tests

    In some cases tox do not report failed test command
    as a failure (exit code different that 0) upstream.
    This patch will explicitly report exit code 1 for
    function that run tox in case of failed tests.

    Change-Id: I639d2c4ac3625ff3832a43e83c46d0e61debe679
    Closes-Bug: #1431437

[Sebastian Kalinowski (prmtl)]

There is no '6.0.x' branch for fuelclient.