.gitreview, .zuul.yaml, .jujuignore, copyright
Also align tox.ini with charm-ceph-iscsi.
Also temporarily disable Zaza tests as we don't have
the necessary NetApp ONTAP cluster deployed yet in
order to run them.
Change-Id: Ic12afbccfe8a3bf15e1dbb42ed093164d9aeaed6