JS Preprocessor (In Progress)

As a preview, there is my branch on the JS Preprocessors.

- CoffeeScript
  - [x] CoffeeScript version of the app
  - [x] CoffeeScript build
  - [ ] CoffeeLint
- ES6
  - [x] ES6 version of the app
  - [ ] Traceur build
  - [x] 6to5 build
  - [x] Module handling with Browserify
- TypeScript
  - [ ] TypeScript version of the app
  - [ ] TypeScript build
  - [ ] Some sort of TS linter?