Notifications for answer, timeout, buzz, etc

[sharadmv]

This has a lot of components

• Partition the main question box to have a lower portion for "notifications"
• For onQuestionComplete, put "ANSWER:"+answer in that box.
• For onBuzz, put in user+"buzzed in"
• For onAnswer, put in who answered, what they answered with, and the "message" property of the onAnswer callback ("for -5 points," "for 10 points," "for no penalty")
• Similar for onQuestionTimeout, onAnswerTimeout
• Implement any other notification methods I haven't covered.

[achalddave]

Notifications involving highlighting/changing the userArc color are implemented.