Remove misplaced comma that breaks IE8

This pull request fixes a bug that was crashing my application in IE8.
Just removes a misplaced comma from an hash.


![screen shot 2013-09-23 at 16 12 22](https://f.cloud.github.com/assets/10764/1192436/98e59bca-2462-11e3-88a5-bb2b8fc8d053.png)