added package.json
Restructure directory and add .gitignore

All of the `*.coffee` files were moved to `src` and their javascript
equivalents were moved to `build`. The `style.css` was moved to the
`css` folder and `test.html` was moved to `test`.
Merge pull request #5 from usehashbang/directory

Directory
Merge branch 'dev' of https://github.com/usehashbang/yavathcript into dev
Merge branch 'dev' into multiple_step_suites