It's time to move on with life.
(dtroyer) This requires sdk >= 0.10.0 (0.9.19 is in
global-requirements.txt) and osc-lib >= 1.8.0 (1.8.0 is already in g-r).
Once we have sdk bumped make_client() becomes just a pass-through for
the plugin interface and existing code compatibility.
Change-Id: Ie3d7c442da4257b11140c109e9df69b629336f42