Fix front header image scaling

### From
![screen shot 2014-10-03 at 12 20 03](https://cloud.githubusercontent.com/assets/1492162/4505080/7cf1a256-4aef-11e4-98ff-8c63b75424fa.png)

### To
![screen shot 2014-10-03 at 12 19 54](https://cloud.githubusercontent.com/assets/1492162/4505082/8172c9c2-4aef-11e4-88b1-6b53c0c74383.png)