Create a basical example using MySQL

- Connects to a local mysql database called flask
- templates contain a form that is not quite wired up to write to the DB
- Does the same basic lookup the version using sqlite does, to display the
  username in the template.
start of a dropbox music app called porkins

- uses persona to log in
- connects to a users dropbox account
cleaning up some debug statements
converting to a more succinct syntax for ajax calls
converting another chunk to more concise ajax syntax