Send a message attachment when confirmed successful job submission.
fixed code formatting
- Implemented a detection of disconnects in the ConnectionImpl.
- Added onDisconnect call-back functions.
- Gracefully disconnect when communication channels are done. In order to catch such events in child classes a call-back is introduced as well.
added a simple pushMsg which takes a protocol command with empty message attachment as an argument.
Use new simple pushMsg in the commander’s communication channels.
Add cmdDISCONNECT.