adding wrapper div around description
get the index of the selected option instead of text
added animation callbacks for all methods that use jQuery animations (fade)
trying simpler solution for animation callbacks
partway through simpler solution; must finish and commit again
finished "simpler solution"; visualize a house key with notches
added callback for passing score when quiz finishes
separated animationCallbacks from event methods
adjusting comment about answer comparison and version bump
adjusting comment about answer comparison and version bump
fixed animation callbacks for when "back" button is disabled
updated README with notes on new animation callbacks and event methods
Adding option to turn question numbering off.

Added the 'displayQuestionNumbers' option and a check before pre-pending the question number to the question HTML.
adding documentation for `displayQuestionNumber`; also added `displayQuestionCount` option
merging cxelegance events and callbacks; documentation updates; closes #11, closes #14