Refactor quiz creation to be dynamic
Add helper method to see if session is set
Refactored Quiz creation to use difficulty key to generate a quiz
Add logic to create new Artist if they dont exist in database
Add helpers

-Signed in helper to see if user is signed in
-Artist created? helper to see if Artist exists
-Initalize new tracks helper for new artists
Add functionality to generate new quiz, or load existing
Merge pull request #8 from great-horned-owls-2014/add_quiz_levels

Add quiz levels