Approval project structure

For Review @MartinSenne 

Project structure for SBT managed Scala project,
more precisely I suggest:
1) Scala 2.11 RC since it's going to be released very soon
2) Including both, ScalaTest and ScalaCheck for testing
3) Sticking to the standard Scala Code of conduct and Style guide

That's it for the basics, next one will be some source commit