Added latest jQuery + jQueryUI. Added MIT licence file. Modified README. Fixed single click selection bug.
Update README.md

fixed closing tag
Fixed closing OPTGROUP tags in index.html. Added a TODO in README.md. Fixed bug when selecting all group elements that updated the wrong header + did not re-enabled moveEffect option.
Fixed select all group count issue. Modified params in change events.
Major code refactor with a faster algorithm.
Changed event object to return option elements instead of indexes on change events. Added a new dynamic demo on the index page. Modified README to mark show empty option group feature as implemented.
Implemented sortables on elements and on group. Need to bind sortable events to original element.
Finished implementing sortable option. Documented known issue with sortables and the refresh method.
Re-implemented group collapsible and (dbl)click on option item options. Improved group collapse handle UI. Fixed an issue when filtered items change selection state.
Trying to fix the refresh issue with sortable... code will need cleanup!
Selection is preserved on sortables and after refresh! (Though at some little overhead time cost.)
Updated README.
Fixed group header display condition. Improved refresh speed.
Changed event names to respect conventions. Moved search events so it can be stopped with event.preventDefault(); . Added ribbon to repo on the index page. Added another known issue to README regarding sortables.
Added TODO
Properly implemented sortables and draggables. Minor UI improvements. Update README.
Fixed headers were not updating on sortable drop event.