Added syntax highlighting for all pages.

Fixed syntax highlighting for quickstart.md
Added table of contents and some modifications to quickstart.md

Screenshots:

![image](https://f.cloud.github.com/assets/574734/2482532/2bdc8a66-b0ee-11e3-8d2e-24b9645fadb4.png)
![image](https://f.cloud.github.com/assets/574734/2482535/35ebcd82-b0ee-11e3-97bb-c71b0332ac50.png)
![image](https://f.cloud.github.com/assets/574734/2482543/4f0de07a-b0ee-11e3-8ed0-c5500ec90091.png)