Create show score route for Artist
Stats method now has access to number of right answers
Update User show to have scores
Connect Artist to Taken Quizzes in Artist model
Add mulitplier for difficulty for scores
Edit score to use only number of correct answers, not percentage
Create method to compute total score of artist for specific user
Update scores page for user
Add artist show page to show scores per user
Merge pull request #13 from great-horned-owls-2014/update_scoring_leaderboards

Update scoring leaderboards