Tweak Create new rule button in ACP

Instead of having -> 
![old](https://cloud.githubusercontent.com/assets/303711/4265066/e1ac117e-3c3d-11e4-8aeb-e9daa6a32dce.png)

Now we have -> 
![new](https://cloud.githubusercontent.com/assets/303711/4265067/e68613f2-3c3d-11e4-999e-5d42eae47411.png)