The openstack directory was used to keep codes from oslo-incubator,
we have retired oslo-incubator,so don't use this directory any more.
Change-Id: Ifcf1a4388bd886d5d04675a54112857d99d43586
Add the .coveragerc configuration consistent with other projects,
specifically to define including branch = True and omit including
tests in the coverage reports
Change-Id: I5d18b10a46a7149b1187ab830ce7520d0aa3c6dc