Code cleanup
Removing dummy app
Using decorator for DJ model additions

Better method instead of opening up the class definition directly
Removing scoping code that wasn't in use
Adding retry button to #show
Better formatting for serialized handler and error hashes
Merge pull request #1 from iloveitaly/cleanup

Refactor DJ model into decorator
Prune comments, bolierplate
NEW: Retry on Show
IMPROVE: Better Show formatting