Fixes for ONOS NFV demo

Change-Id: I98bfdacfb19988984a306e7cd1d1de0c0565c6be
Initialize ports as edges in all cases

Change-Id: I4acf26eac14750ac0eeb6c42293c9c2171be08be
Merge "Fixes for ONOS NFV demo" into 0.1-DEV
Merge "Initialize ports as edges in all cases" into 0.1-DEV