Modified classmethod queries that determine if a Model is sortable to only retieve one record and not use count.

Fixed jQueryUI highlight method call in success handler of ajax function when dragging stops.
Fixed missing script resource for jquery.effects.core.js

sample_project/README

@@ -1,12 +1,12 @@
-Thanks for download django-admin-sortable.
-I hope it can help you out as much on your project(s) as it does on mine :)
-
-The only url patterns that are enabled for this project are /admin
-The username/password is: admin/admin
-
-If you still need help, please contact me at: btaylorweb@gmail.com
-
-Kind regards,
-Brandon Taylor
-
+Thanks for download django-admin-sortable.
+I hope it can help you out as much on your project(s) as it does on mine :)
+
+The only url patterns that are enabled for this project are /admin
+The username/password is: admin/admin
+
+If you still need help, please contact me at: btaylorweb@gmail.com
+
+Kind regards,
+Brandon Taylor
+
 bTaylor Web