1. Update neutron patch to account for addition of VIF type
2. Use get to avoid key error
3. Re-enable repo sync, ask for physical interface to use
Merge remote-tracking branch 'dsetia/master' into contrail
more fixes for devstack on ubuntu

use python -m instead of PYLIBPATH to run python scripts like discovery.disc_server_zk

updated url for latest version of repo

install distribute