Change noneSelectedText to be callable
Tabs
Remove the 'selected' attribute when 'multiple: false' and another option is selected.
o.noneSelectedText was called with the wrong context (should have been the widget element, not the buttonlabel element (that implementation detail should not be exposed)). FIXED.
extra parameters are now passed on when using jQuery trigger to fire a click event
added initialization of click arguments
Added robustness against improper noneSelectedText functions (ones that return "undefined").
These sentences are better for the understanding of commands.
Dutch translations
added selectedListSeparator option. default: ', '.
Add a buttonvaluechanged event 

Easing the way to add a photo or something else in the button value after the update
Add style for generated image from data-image tag
Add tag to show icon besides the option
Add tag to show icon besides the option
Add style for generated image from data-image tag
Add tag to show icon besides the option
Changed icon to match selectmenu widget

http://wiki.jqueryui.com/w/page/12138056/Selectmenu

Probably the markup of the button should changed too to match the button widget from jQuery UI Core - so it could fit nicely into existing projects.
Allow to set specific menuWidth by option
Allow to change menuWidth after initialization
Fix IE JS Error if first item is disabled

If the first item is disabled, it cannot be focused. This raises a
JS error in IE8 (and probably other versions).

Make sure we find the first item that is not disabled and focus this.