Update ajax-chosen.js

[abunour22]

There was a problem when " append options " to target select,

Especially when use class name to run script. e.g : $(".chzn-select").ajaxChosen();

i've changed " select " with " $this " to make it run correctly ..

and changed : .trigger("liszt:updated");

To latest update of chosen ..

.trigger("chosen:updated");

[monstrfolk]

Lets get some movement on this please.