Stanford-Online/class2go — pull request #819 by jbau (2012-09-25 02:33:25+00:00)
Title: patch to basically support #723 "multiple" type khan question

solar class uses a lot of these to help them format the answer box
it validate properly now--still slightly buggy in that the second answer
is not displayed when you get it right and re-visit, but I think it's
a hotfix that addresses a pressing need for Chinmay and should ship