Fixed dhcp & gateway ip conflict in PLUMgrid plugin

   * Adjust dhcp IP if conflicts with gateway IP
   * Added unit test case

Closes-Bug:1333442
Change-Id: Iaa4e63faf28b783e6b5dbc50035ca50ccde9951a
Exit rpc_loop when SIGTERM is recieved in ovs-agent

Previously ovs-agent exited with exit code 1 after SIGTERM was received.
SIGTERM should shutdown agent gracefully and exit code should be 0.

Closes-Bug: #1334264
Change-Id: I23e81cee5ae9e9fdabbe1377420b0902f47be8a7
Add config for performance gate job

This rally scenario is intended to be run in OpenStack CI
by rally-dsvm-neutron-neutron job.

Implements: blueprint neutron-performance-gate-jobs
Closes-Bug: #1334434
Change-Id: If204f3dfc32933792d09fdc929c248fc3f17b0bc
remove unsupported middleware

the audit and notifier middleware from oslo-incubator are not
compatible with oslo.messaging. remove these middleware.

Change-Id: I456c2aa5f24ef977949f589f72d521514d5e97e4
Merge "Add config for performance gate job"
Merge "Exit rpc_loop when SIGTERM is recieved in ovs-agent"
Merge "remove unsupported middleware"
Merge "Fixed dhcp & gateway ip conflict in PLUMgrid plugin"