Log Message:
py-django-filer: updated to 2.0.2

2.0.2
Fix 1214: serve() missing 1 required positional argument: filer_file.
Fix 1211: On upload MIME-type is not set correctly.

2.0.1
Fixed NotNullViolation: null value in column "mime_type" in migration \ 
filer.0012_file_mime_type.py.

2.0.0
Added support for Django 3.1
Dropped support for Python 2.7 and Python 3.4
Dropped support for Django < 2.2
Changed the preferred way to do model registration via model inheritance and \ 
mptt.AlreadyRegistered, which is deprecated since django-mptt 0.4
Use dashed name for django-polymorphic dependency in setup.py
In models.File, add field mime_type to store the Content-Type as set by the \ 
browser during file upload
For extended Django Filer models, adopt the classmethod matches_file_type to its \ 
new signature, this is a breaking change
Add attribute download to the download link in order to offer the file under its \ 
original name