[jQuery] Autocomplete mustMatch fix - possibly

[Robert O'Rourke]

Hi there,
   Assuming that when must match is true you want the dropdown to 
disappear if something other than a matched value is typed I think this 
extension to the stopLoading function does the trick:

   function stopLoading() {

       $input.removeClass(options.loadingClass);

       if ( options.mustMatch ) {

           select.hide();

       }

   }