First pass at making it easier to get started

The steps are documented on docs/readme.md.

I'm not sure how prod actually looks so I tried not to break it.  However it was configured before on both stages should still work (i.e. via environment variables).

This commit makes it so you don't need to set any environment variables and can use `local_settings.py` (which was in `.gitignore` for some reason - I couldn't find any references to it).  The reason for wanting `local_settings.py` was that it seemed like a more straightforward way for someone to get started.

Also in the commit are the fixes to models which allows `syncdb` to work.  That part probably still needs more work since I just guessed the mysql schema on top of django's guesses.