Setting the right minimum length for OFVendor and also adding the computeLength() function for that message.
Setting the right minimum length for OFVendor and also adding the computeLength() function for that message.

rcchan/cs168-sdn-floodlight,drinkwithwater/floodlightplus,rcchan/cs168-sdn-floodlight,drinkwithwater/floodlightplus,rcchan/cs168-sdn-floodlight,drinkwithwater/floodlightplus,drinkwithwater/floodlightplus,rcchan/cs168-sdn-floodlight,rcchan/cs168-sdn-floodlight