The dib-utils repository was retired as part of retirement of TripleO.
This imports the tiny dib-run-parts script because it's used by
os-refresh-config now.
This also removes direct execution of os_refresh_config.py, which is
required only for testing.
Change-Id: Ia516e604bafdc59dbcfa81796348191b03cbe0b7
According to Openstack summit session [1],
stestr is maintained project to which all Openstack projects should migrate.
Let's switch to stestr as other projects have already moved to it.
[1] https://etherpad.openstack.org/p/YVR-python-pti
Change-Id: I99bef7040974e193bc5a57f6f5a7dd7fe293519d