tox: Remove cleanup of Python object files as this breaks
in the upstream gate.
tox: While at it migrate from os-testr to stestr.
Change-Id: I1bad5311ed034188a78dc67b493c22bff7ce4f7d
Helper functions for the ceph charms. This library has shared functionality that is used in the ceph-mon, ceph-osd and ceph
charms. Anything that needs to be shared across the ceph charms should live here.