* remotes/origin/topic/seth/modbus-merge:
Small modbus documentation update and tiny refactoring.
Final touches to modbus analyzer for now.
Major revisions to Modbus analyzer support (not quite done yet).
put some make-up on Modbus analyser
Modbus analyser, added support: FC=20,21
Modbus analyzer,added support: FC=1,2,15,24
Modbus analyzer, current support: FC=3,4,5,6,7,16,22,23
Closes#915.
- There are still some broken events in the modbus analyzer because
I don't have traffic to test with (coil and record related events primarily).
- There are a few example scripts in policy/protocols/modbus