draggableviews_handler_sort, should be rename to draggableviews_handler_native_sort

There is a generic sort handler for Draggableviews. It is called draggableivews_handler_sort. It is only used for Native handler sorting.

People get confused what the purpose of this handler is for. It is not for FieldAPI or the future plan Taxonomy/EntityWrapper handler.

The Views UI help text and filename needs to be changed. Changing the filename will break existing views. Creating an update hook will fix the views in the database, however if you are using a feature, it will still be broken.

Marking this postponed til 7.x-3.x (if there is a 7.x-3.x version).