Merge pull request #100 from andi-bigswitch/java-blackbird

OFPortBitMap doc/clarity fixes for blackbird
Merge pull request #116 from andi-bigswitch/java-blackbird

Deliver update from master to java-blackbird
java_gen: add support for bsn_in_ports
Merge branch 'java-blackbird' of github.com:floodlight/loxigen into java-blackbird