iOS 7 web app

Fixes #9.

- [x] Add new icons to base layout.
- [x] Outline post.
- [x] Draft post.
- [x] Proof read & finish post.
- [x] Add link to existing iOS posts ([one](http://taylor.fausak.me/2012/03/27/ios-web-app-icons-and-startup-images/) & [two](http://taylor.fausak.me/2012/09/20/iphone-5-web-app-startup-image/))