Using bats

- Add test with bats
- Change source format
    - build
![build](https://cloud.githubusercontent.com/assets/199493/4348784/c78bb34a-419b-11e4-9d20-4ff06eb21619.png)
    - deploy
![deploy](https://cloud.githubusercontent.com/assets/199493/4348786/cdf444f4-419b-11e4-9a4e-a1b8bd5698cb.png)