Spinning

![posta3](https://cloud.githubusercontent.com/assets/701959/3521719/6636c86a-0743-11e4-8dfd-09dc82dd30db.gif)

Added a spinning visual effect to rolling on the floor to extinguish yourself in case of a fire.
Lube will now make you spin while you're slipping.
Water will make you slip on the spot and won't move you forward.
Fixed the bug of wrong mob directions when buckling them while they are lying down.