Stil can't run non-geo tests without installing dependencies

[akoumjian]

django.core.exceptions.ImproperlyConfigured: Error loading psycopg2 module: No module named psycopg2

@thebigspoon you broke it! :-P

[akoumjian]

Okay, so I've pushed all the Geo code into the separate geoexample app (with exception to the small modifications to base.py, the actually code changes which I had to remove)

When we re-enable this, let's do it by running manage.py with separate settings. example/settings.py for the non-geo tests and geoexample/settings.py for the geo tests.