Hey Thomas, I was gonna volunteer to add a few mathematical routines, I needed ABS and RANDOM to play with it, but I got the sources and found out they're in th

Hey Thomas, I was gonna volunteer to add a few mathematical routines, I needed ABS and RANDOM to play with it, but I got the sources and found out they're in there, just not documented :-) Interested parties can read logo.js; search the file for addCommand, addTurtleCommand, addPrimitive, addInfix, etc. I see you have s-exp parsing in your TODO list, perhaps I can take that for a task. Along with some documentation. Otherwise it looks great :-)