Dashboard features

* Dashboard
  * Dashboard edit and premium user icon
  * Dashboard displays enrolled courses and courses they owned
  * Hovering over enrolled course displays an overlay where user can go to course or view their quiz attempts
  * Tests

* Quiz Attempts
  * Quiz Attempts collection
  * Quiz Attempts view which is a table of their scores with pretty colors :D
  * Tests

* Other
  * Premium user page.. it's totally derpy -- we need to change that
  * Updating profile is designed
  * Changed some fixtures for testing

@abboudm @DavidMah