Per instruction from
Enable hacking check H104 in this CL.
We have git to track authorship, so let's not pad source files
with it as well.
A hacking check has been added for this. The value is N322.
This patch initiates the blueprint l2-population
Implemented as a ml2 Mechanism driver.
OVS & LinuxBridge drivers will be added as dependencies.
Rebased on ML2 Portbinding.