Gate fails on gate-python-troveclient-pep8

[Mh Raies]

2015-05-27 11:39:38.171 | pkg_resources.VersionConflict: (pbr 1.0.1 (/home/jenkins/workspace/gate-python-troveclient-pep8/.tox/pep8/lib/python2.7/site-packages), Requirement.parse('pbr<1.0,>=0.5.21'))
2015-05-27 11:39:38.171 | ERROR: InvocationError: '/home/jenkins/workspace/gate-python-troveclient-pep8/.tox/pep8/bin/flake8'

This is caused by the fact that pbr has now released 1.0.1 and although most of the dependencies in Trove have switched to:

 pbr>=0.11,<2.0

we are still using the hacking module from last year (hacking>=0.8.0,<0.9), which has pbr pegged to <1.0 The hacking module needs to be updated and the new rules ignored.

Here are the hacking rules that should be ignored:
ignore = E111,E122,E123,E128,E251,E265,E713,F821,H105,H237,H238,H301,H305,H306,H307,H402,H404,H405,H407,H501,H904

[Sushil Kumar (sushil-kumar2)]

This is resolvable by a patch under review https://review.openstack.org/#/c/184609/