Added Tahu Goreng Theme for zsh

my theme called tahu goreng. its a indonesian flavour who like simplicity

i also attached scrennshot to see tahugoreng in action :)
![Screenshot from 2012-12-24 22:10:29](https://f.cloud.github.com/assets/2213646/29884/3f824130-4ddc-11e2-8bd1-1fa738e74652.png)

fix word status on untracked
![Screenshot from 2012-12-24 22:26:35](https://f.cloud.github.com/assets/2213646/29894/71ec0e56-4dde-11e2-9767-b5a8875a4dce.png)