Fixed models based on output from graph.py script and comments on
http://groups.google.com/group/melange-soc-dev/browse_thread/thread/fb532a7db1f19ea7
This is an optional add-on app, flatpages.
For full documentation, see either of these:
* The file docs/flatpages.txt in the Django distribution
* http://www.djangoproject.com/documentation/flatpages/ on the Web
Both have identical content.