fix: remove usage of old MIDDLEWARE_CLASSES
fix: remove usage of old MIDDLEWARE_CLASSES

jazzband/django-pipeline,d9pouces/django-pipeline,beedesk/django-pipeline,cyberdelia/django-pipeline,jazzband/django-pipeline,d9pouces/django-pipeline,cyberdelia/django-pipeline,beedesk/django-pipeline,jazzband/django-pipeline,d9pouces/django-pipeline,beedesk/django-pipeline,cyberdelia/django-pipeline