Refactored sorting filters from class method into a model property with a default of an empty dictionary.
Refactored sortable admin class to not make two calls to determine sortability and also to get objects for sorting.
Added sorting_filters to sortable admin queryset.
Replaced jQuery loaded from CDN with jQuery included with Django Admin.
Replaced jQuery UI from CDN with django.jQuery namespaced jQueryUI 1.8.11.
Implemented static includes using {% static %} template tag.
Removed documentation concerning override of sortable inlines whose parent doesn't inherit from sortable until a consistent workaround can be achieved.
Added CSRF protection for sort views.