SAM-2415 - Patch from Peter Liu - Clicking on statistics generates a stack trace.


git-svn-id: https://source.sakaiproject.org/svn/sam/trunk@314143 66ffb92e-73f9-0310-93c1-f5514f145a0a
SAM-2397 - Patch from Peter Liu - Multiple choice / radio boxes not available to students


git-svn-id: https://source.sakaiproject.org/svn/sam/trunk@314144 66ffb92e-73f9-0310-93c1-f5514f145a0a