Create jquery.attrchange.js

A simple jQuery function that can add listeners on attribute change.
http://meetselva.github.io/attrchange/

About License:
Copyright (C) 2013 Selvakumar Arumugam
You may use attrchange plugin under the terms of the MIT Licese.
https://github.com/meetselva/attrchange/blob/master/MIT-License.txt

attrchange is a simple jQuery function to bind a listener function to any HTML element on attribute change.