Quick fix for OF1.0. Should find a way so that all modules don't have to worry...

Quick fix for OF1.0. Should find a way so that all modules don't have to worry about how to get Match from PI. OF1.0-1.2 use pi.getInPort(); OF1.3 uses pi.getMatch(MatchField.IN_PORT). Workaroud is: (pi.getVersion().compareTo(OFVersion.OF_13) < 0 ? pi.getInPort() : pi.getMatch().get(MatchField.IN_PORT))