* django-mptt e734079+ <https://github.com/django-mptt/django-mptt/>
* (Optional) django-grappelli 2.0+ <http://code.google.com/p/django-grappelli/>
* (Optional) recaptcha-django r6 <http://code.google.com/p/recaptcha-django/>
* django-mptt e734079+ <https://github.com/django-mptt/django-mptt/>
* (Optional) django-grappelli 2.0+ <http://code.google.com/p/django-grappelli/>
* (Optional) recaptcha-django r6 <http://code.google.com/p/recaptcha-django/>