Move Y axis controls left; better organize sass for separate directives

Fixes #115
![screen shot 2014-12-19 at 3 41 51 pm 2](https://cloud.githubusercontent.com/assets/1977405/5510910/975ec726-8795-11e4-9071-b7f0e342b7da.png)
![screen shot 2014-12-19 at 3 41 54 pm 2](https://cloud.githubusercontent.com/assets/1977405/5510911/9a3af5aa-8795-11e4-989c-e02eb6d55f67.png)