File restructure, coffeescript rewrite, bower/component support, change for version control, & update readme

Major & minor changes
================

- [x] CoffeeScript conversion
- [x] File restructure, for compiling coffeescript to javascript & secluding countUp files
- [x] [bower](//bower.io/) & [component](//component.io) support added, register to complete both
- [x] change log added for version control
- [x] update README with more documentation on usage

I used npm coffee-script module to produce `assets/countUp.js`
Thoughts?