pep8: whitelist everything

.. except for four auto-generated *.py files

Change-Id: I237e19d5cdd087d8fe0f337f41560b72b1c80a37
Signed-off-by: Dan Kenigsberg <danken@redhat.com>
Reviewed-on: http://gerrit.ovirt.org/25392
Reviewed-by: Yaniv Bronhaim <ybronhei@redhat.com>