Diederik van der Boor (@vdboor)

Contributions by:

* Fabio Zoratti
* Fandi Iksani
* Gil Obradors
* Joshua Miller
* Mark Allen
* Mateu Batle
* Mikhail Vagin
* Nihar Patel
* Pavel Savchenko
* Lucas Gueiros

Inspired by:
https://github.com/RacingTadpole/django-private-media
https://bitbucket.org/vvangelovski/django-private-files