Fullcalendar Week Numbers

First time making a pull request, so hope im doing this right :-)

Fullcalendar v1.5.4 - with week number modifications ( OS X style ).

Modifications are marked /* Week Number */

Code: 

http://www.microtower.com/fc/fullcalendar.js
http://www.microtower.com/fc/fullcalendar.css