Converted project to a Yeoman Generator

Converted Substrata project to Yeoman Generator... 

![yeoman-substrata-generator](https://f.cloud.github.com/assets/703800/2501165/7ba24c48-b369-11e3-8f95-6b30fa2df45d.png)

To test it out:
1) npm install -g git://github.com/Illizian/Substrata.git
2) mkdir substrata-playground && cd substrata-playground
3) yo substrata

I have removed tests from the created project for now, but these can be added back fairly easily.