Alternate GUI for the Gradebook module

So it turns out, I can't post my code into my sandbox because it's a somewhat complete module. That being said, I'd rather it was a little bit more public than us passing it back and forth via email. I don't want to create a new project, because I'd rather integrate my code with yours, if possible.

So I'm posting the code here (it's a .zip attachment, shhh, just rename it) so that we can publicly share it.

Personally I think we need a space to store collections of files like this so we can keep track of collaboration more publicly.

Dave