moved symbols stuff to its own class
added to the Promotion class
changed the process a little for determing moves and reducing them
I'm assuming we were using "shorts" because they are more efficient than
"int"s, we might as well use chars when a range of -127 to 127 is ok
Merge branch 'master' of https://github.com/Heavenrich/ChessNut

Conflicts:
	arduino_prototype_lcd/arduino_prototype_lcd.ino