assertEquals is deprecated, use assertEqual (H234)

Fix last occurrences of Hacking check H234 (Python 3.x
porting issue)

Change-Id: I5444889e1837c89045996c74526e2d7a58c7a649
Switch to Hacking 0.8.x

Blacklist the few hacking warnings that still trigger, those
can be fixed in a followup commit. Start Gating on the new
tests of Hacking 0.8.x (which are all passing here).

Change-Id: I3be1a9a517ec399dd92252a7c705d1a7a6d5e4c2
Merge "assertEquals is deprecated, use assertEqual (H234)"
Merge "Switch to Hacking 0.8.x"