Proposed design

I made a design of new www.ruby-lang.org for the contest.

![2013-11-08 11 48 08](https://f.cloud.github.com/assets/710479/1498478/24532e7e-4836-11e3-8ed0-97ed96070138.png)
![2013-11-08 11 48 59](https://f.cloud.github.com/assets/710479/1498481/2d12e68a-4836-11e3-9135-b75f4efa3034.png)
![2013-11-08 11 49 29](https://f.cloud.github.com/assets/710479/1498482/30869758-4836-11e3-9914-0cf84ee3bc17.png)
![2013-11-08 11 49 17](https://f.cloud.github.com/assets/710479/1498483/32e6e430-4836-11e3-8749-0c4cf57bcf42.png)
![2013-11-08 11 49 57](https://f.cloud.github.com/assets/710479/1498485/374da0d6-4836-11e3-9237-ca5cc2ed69b6.png)
![2013-11-08 11 49 50](https://f.cloud.github.com/assets/710479/1498486/3c1fed1c-4836-11e3-8960-ee012a72eb90.png)