Adding 'jQuery' 1.9.1.

Straight from http://code.jquery.com/jquery-1.9.1.js and http://code.jquery.com/jquery-1.9.1.min.js.

[![Build Status](https://secure.travis-ci.org/bmcustodio/cdnjs.png?branch=jquery-1.9.1)](http://travis-ci.org/bmcustodio/cdnjs)