Cleaned up, added forked_from field, and updated signals to archive on delete
Cleaned up, added forked_from field, and updated signals to archive on delete

Forking should work as well (need to test)

Also changed post_save signal so that if the repo already exist on
disk, we just archive it and create a blank (or cloned) repo in its
place.

michaelwisely/django-greta,michaelwisely/django-greta