moved everything into /trunk/ to create the standard svn layout, for use with tools that require this (eg. git-svn). IMPORTANT: do NOT do an `svn up`. instead, re-use your working copy's existing files with `svn switch` (http://svnbook.red-bean.com/en/1.6/svn.ref.svn.c.switch.html).

Moved pre-BIEN 3 files into _archive folder

Adding scripts to transfer data between BIEN2 to VegX schema.
Bug fixes to models.py

Committing first working copy of models.py. Other py/pyc files are added/modified just to get in repos.

Initial import of Django version of BIEN