added animation callbacks for all methods that use jQuery animations (fade)
trying simpler solution for animation callbacks
Merge branch 'issue#11-testing' into refactoring-testing

Conflicts:
	js/slickQuiz.js
needed original slickQuiz.js for testing
trying simpler solution for animation callbacks
partway through simpler solution; must finish and commit again
finished "simpler solution"; visualize a house key with notches
Merge branch 'refactoring' into refactoring-testing

Conflicts:
	js/slickQuiz.js
added callback for passing score when quiz finishes
Merge branch 'refactoring' into refactoring-testing
more testing callbacks added
separated animationCallbacks from event methods
Merge branch 'refactoring' into refactoring-testing
testing latest refactoring; testing animationCallbacks plus events