update loci to c4da04db638135e618763773bd03371db1c9b7fd

 - Fixed role request/reply message format.
 - Added BSN extensions to packet_in_reason.
 - Added several BSN OXMs.
Merge into master from pull request #57:
update loci to c4da04db638135e618763773bd03371db1c9b7fd (https://github.com/floodlight/indigo/pull/57)