Since midonet has become open source, we can build it from
external plugin scripts. The way to enable it is using the devstack
plugin approach:
disable_service n-net
enable_service q-svc
enable_service q-dhcp
enable_service q-meta
enable_plugin networking-midonet \
http://github.com/stackforge/networking-midonet
Q_PLUGIN=midonet
and should download and build the last master branch of midonet.
Change-Id: I795f92f9d3c97b2c35bac712c6edfc032eff345a