Speedup solidfire unit tests

The SolidFire driver has a sleep that's used in a retry loop.  This
sleep was being called every iteration of the loop though
(instead of just when the call failed).

This made SolidFire the slowest test in the unit tests, and obviously
it's just stupid anyway.  So this change fixes that and only performs
the sleep if the call actually failed.

Change-Id: I560f2fdb6bf16a6a9b26184234225349ab62e816
Remove the log spam generated by the NetApp driver unit tests.

Change-Id: Iae6a4f0a1553b4b461bd024c29ba6ff4e9db737f
Fixes: bug #1157910
Update Cinder's latest copy of OSLO grizzly stable

This patch updates all the files from oslo under
stable/grizzly but policy.py.  policy.py is a high risk
change at this date and it has lots of changes since the
last time we updated it.

Fixes bug #1157126

Change-Id: I399a1cd8474f718ed5196def90d2fea546fb01f5
Add missing processutils for impl_zmq in oslo rpc

impl_zmq in oslo rpc requires processutils.

Change-Id: Ib2f114a9e78af6d2acdab34c8c787df8abdb967a
Merge "Speedup solidfire unit tests"
Merge "Add missing processutils for impl_zmq in oslo rpc"
Merge "Update Cinder's latest copy of OSLO grizzly stable"
Merge "Remove the log spam generated by the NetApp driver unit tests."