keybind for ScreenShot #135

#135 

![cee1f860f8ed84bef3ec636409849de0](https://f.cloud.github.com/assets/931554/1208660/9b0175e8-25d7-11e3-97a3-d61c69e41581.png)


![201309252005](https://f.cloud.github.com/assets/931554/1208636/d5862192-25d6-11e3-98a6-91827af376e6.png)