- Fixed a bug where NCOSDListener was not showing values received; it is fully working now.
- Removed UART from SerialEventListener; it is very likely that it is not necessary.
- SerialCommandManager now sends DebugRequestCommand upon request from SerialNavManager as soon as SerialNavManager.addNCDebugListener is called.
- SerialCommandManager.sendCommand() is now more abstract: it receives MKCommand instead of FCCommand.