Fix media handling in demo application.
Fix media handling in demo application.

Josephpaik/django-ckeditor,gushedaoren/django-ckeditor,zatarus/django-ckeditor,zatarus/django-ckeditor,MarcJoan/django-ckeditor,luzfcb/django-ckeditor,luzfcb/django-ckeditor,Josephpaik/django-ckeditor,zatarus/django-ckeditor,gushedaoren/django-ckeditor,MarcJoan/django-ckeditor,MarcJoan/django-ckeditor,gushedaoren/django-ckeditor,Josephpaik/django-ckeditor,luzfcb/django-ckeditor