Add simple move blocks to Studio

- Add simple move blocks to Studio
- Add k1 versions of current move [direction] and move [direction] [length] blocks
- Add k1 simple move block test level
- Use localized NSEW letters in maze

![image](https://cloud.githubusercontent.com/assets/206973/3265291/ef67c438-f28d-11e3-9ccd-acef6911f67f.png)

![image](https://cloud.githubusercontent.com/assets/206973/3265296/fa689574-f28d-11e3-9836-32143670eb8e.png)

![image](https://cloud.githubusercontent.com/assets/206973/3265298/00fc135c-f28e-11e3-8fbe-3c32eedb3d53.png)