Make MediaFileForeignKey known to south
Make MediaFileForeignKey known to south

mjl/feincms,nickburlett/feincms,matthiask/django-content-editor,michaelkuty/feincms,feincms/feincms,matthiask/feincms2-content,matthiask/django-content-editor,joshuajonah/feincms,joshuajonah/feincms,matthiask/django-content-editor,matthiask/feincms2-content,matthiask/feincms2-content,nickburlett/feincms,pjdelport/feincms,joshuajonah/feincms,feincms/feincms,michaelkuty/feincms,pjdelport/feincms,nickburlett/feincms,mjl/feincms,michaelkuty/feincms,nickburlett/feincms,pjdelport/feincms,joshuajonah/feincms,feincms/feincms,michaelkuty/feincms,mjl/feincms,matthiask/django-content-editor