Improve readability of MagicMock use in RYU test

Replaces an unnecessarily complex setup of a magicmock
in an RYU test module.

Change-Id: If2e99ff76114d896a6480a884a531f901198caa5
Radware LBaaS driver is able to flip to a secondary backend node

Change-Id: Ifbfef493d5339f61dcf58dddcc8e3830aaf06bf1
Closes-Bug: #1324131
BSN: Set hash header to empty instead of False

Sets the consistency hash header to empty instead
of False since 'False' is handled like a string on
the backend and requires special-casing to detect.

Closes-Bug: #1325771
Change-Id: Iee1651574c01a32e78167a9bbed4e0433abbdec2
Log firewall status on delete in case of status inconsistency

This should help to troubleshoot related gate failres.

Change-Id: I92d4d886cafed5faeb2a6d0b224f4b5dc8522100
Related-Bug: #1314313
ovs, ofagent: Remove dead code

Remove "class Port", which seems like a leftover from
the old days when agents had direct database accesses.

Change-Id: Ibc0bf5ab48f08ad620f87eb4952c7ff0f4701fda
Closes-Bug: #1326666
Merge "Log firewall status on delete in case of status inconsistency"
Merge "Improve readability of MagicMock use in RYU test"
Merge "BSN: Set hash header to empty instead of False"
Merge "Radware LBaaS driver is able to flip to a secondary backend node"
Merge "ovs, ofagent: Remove dead code"