MM: Admin should be "completely" functional now... at least for the prototype, also some misc clean up

-Updating the models' __unicode__ to make them work well with the admin
-Adding the models to the admin
-Changing db_creds file to settings_local
-Removing all the pyc files (and gitignoring them)

JB and MR: If you want to review this I'd suggest looking at the first two commits separately (since there are so many .pyc files being deleted, viewing the whole pull request has a lot of noise).