fixing QUIZ-65, the implementation of submittruefalse wasn't correct
should return the value of submitMultipleChoice
adding unit test for submitTrueFalse
Quiz title is escaped via htmlentities any place it's sent to a view
escaping all user inputted items before they are sent back to views -- quiz title and description
escaping all of the user inputted items in the arrays that are sent directly to the views
Merge pull request #162 from Harvard-ATG/bug/QUIZ-67

Bug/quiz 67