Remove excessive verbosity to make log files easier to debug

Change-Id: I8e10c706662b6e82e3d00aeaa436dbe0ec6a0ffd
Support qpid as message provider for ceilometer

Previously, the RPC backend was hardcoded to the appropriate
dirver for rabbitMQ only.

Now we allow qpid to be used as an alternative.

Note that ZeroMQ is not tested or supported as yet.

Change-Id: If9a69a4c52f046fc6e3530b47542d55438787cea
Merge "Support qpid as message provider for ceilometer"
Fix hard coded quantum url and port

Fixes bug 1131384

Change-Id: I88804808e9b2c2d181a3c74af82bd3fad05f63cc
Merge "Remove excessive verbosity to make log files easier to debug"
Merge "Fix hard coded quantum url and port"
Devstack support for nicira plugin

Bug 1116847

Includes slight refactoring of L3 logic in main lib/quantum as previous
logic treated l3-agent as only way to do L3, whereas NVP has its own L3
support.

Change-Id: Ifd8c6864add5939432b544285cf027e52329dea2