================
* Django-1.4 compatibility.
* Separate, customizable file storage backends for public and private files.
* Deleting a file in filer now deletes the file and all its thumbnails from the filesystem.
* Many bulk operations (admin actions).
* Backwards incompatible changes:
* storage refactor: path to private files in the db has changed (no longer relative to MEDIA_ROOT)
* `filer.server.urls` needs to be included to serve private files
* static media has been moved from 'media' to 'static'
(as proposed by django.contrib.staticfiles and django 1.3)
* django 1.2 no longer supported