MCQ choices tips are now displayed in a blue popup like MRQ
Display the right/wrong icons and tips the same way we do for MRQs
Use class in css
Created a MessageView to avoid code duplication
Display MCQ Rating the same way than choices
Delete unused tip_question_group template
strictly compare strings
ensure MCQ rating tips are included in submit response
Fix Studio issue related to ajax loading
Merge pull request #8 from aboudreault/mcq-tip-popup

Display tips & general feedback for MCQs like for MRQs, in a side popup.