Khan/khan-exercises — pull request #11373 by Christi (2012-01-16 23:04:24+00:00)
Title: Allow equality and clean up

Made changes so it no longer ensures that the two items aren't equal and added "=" to the radio list.

Also removed some unused variables and cleaned up the file a bit to make it a little easier to read (found a couple of unclosed

on the way)