added handler to delete quiz
added correct answer selection, inserting actual title of quiz in db
instead of "Test"

quiz slide working, sending requests to quiz sesh on the server
added grades object to quiz model
somehow merged this in under an hour

Conflicts:
	api.go
	models.go
	session.go
	static/app/controllers/quizCtrl.js
	templates/partials/quiz-form.html
	templates/partials/quiz.html