Update documentation for Django 1.6 and new gunicorn scripts.

* Fixes typo in gunicorn_config_dev.py filename
* Changes all ports to run on 8000 instead of 7000.
* Fix start_server.sh helper script.
* Adds a README.html for fun.  Please keep in sync with README.md using the
covvertion tool of your choice.  I have a callback on a README.md save that
generates the README.html.