Move LightsState to separate header file.
Add guard statements to MyNode.h
Add NULL-checks to some MyNode methods.
Extract controlling the lights to a separate class.
Hack in boolean support since the lights are now live
Add programmes to the telnet interface.
Start creating MyNode instances instead of static methods.

This is cleaner but also makes it necessary to move a lot of
initialization logic.
Fix compile warning in CommandParser.
Add support for String values to PrintValueID
Only try to contact the driver 3 times before quitting.
Improve night programme.