Add english comments

Add english comments in:

index.html
style.css
scripts.js
Change to english

Change english comments in code
english readme
Most changes

CSS:

Change styling menu and increase width back button for UX
Change height and colors menu and background app

Javascript:

ADD:

new effects
support for easing
carousel added - beta

carousel added - owl

http://owlgraphic.com/owlcarousel/
new features
Implementacao do Scroll
Update README.md
Update README.md
scroll updates

updates
Update README.md
Demos updates

Demos updates
Performance and fix updates

- iscroll updated most performance
- bug fix scroll ok
- add scroll in pages
- transitions most performance
fixed

fixed css position
css fixes

position