Update RPC code from oslo: consumer threads robustness

The common RPC code has been updated to include the following:

22ec8ff616a799085239e3e529daeeefea6366c4

Related-Bug: #1189711

Change-Id: Ifb8e4993093be56969860349747ef5b10608a07b
Fix problem with setting SSL protocol in QPid

looks like we were setting the wrong param

This is patch Id138926f in Grizzly oslo-incubator and it was already
included as part of I804d1eae for Havana.

Closes-Bug: 1158807
Change-Id: Ie751e5670f612d52eea11db72bab4620de243e89
Merge "Fix problem with setting SSL protocol in QPid" into stable/grizzly
Merge branch 'stable/grizzly' of https://github.com/openstack/quantum into grizzly/stable