+n) Media infrastructure stuff:
+ - make a sort of Factory to get handler perhaps in EntiyMediaType
+ - MediaHandler should take care of storage tablename, the entry in SQL is
+ redundant. -> get rid of it
+ - maybe get rid of the MediaTypeTable entirely and have it in a config file?
+ - use FM's TemplateMethodModel to access the MediaHandler method in templates
+ instead of the crude way it's done now.