Rewrote the server.pl script.  Its now an event based program.

Rewrote the server_debug.pl script.  Its like the new server.pl, except
it doesn't need the arduino board plugged in.

Rewrote the microcontroller code - its also an event based program.

Added a heart beat - the server will "ping" the controller every 3 seconds
Removed the old controller code

updated the client.pl script - added a basic menu of all the available commands.

Merge branch 'master' of https://github.com/kc8hfi/powerwheels

Conflicts:
	source/controllercode/controllercode.pde
	source/perl/client.pl