Updated openstack/openstack
Project: openstack/ceilometer  f9f20cab43f7728a325b680b1ded4fa99b5897c0

Enable pep8 on ./tools directory

This patch fixes the pep8 issues of the tool scripts and
configures tox to run pep8 on the tools directory.

Change-Id: Ifed21e19dd2b382790a1e2a90d5153a8845c4b64