jQueryUI auto complete example with ajax and json

Created a basic auto-complete example using jqueryui ajax and json views controller.
I don't think that fits here, if we consult the book.
> Set allowed HTTP methods. If not matched will throw MethodNotAllowedException. The 405 response will include the required Allow header with the passed methods
As we know AJAX isn't an HTTP method. It will submit an ajax request as either POST or GET. So from reading the book, I don't think that `allowMethod()` fits here, as we are looking for Ajax rather than GET, POST or PUT.