moved bddfy method to the scenario class in ATM
replaced instantiation with this
Added BDDfy Rocks example :)
added fluent API to bddfy rocks too
moved TestStack.BDDfy.Samples to Samples folder - oops!
updated nunit's HintPath
Merge pull request #30 from MehdiK/sample-change

Cleaning up samples and adding a simple BDDfy Rocks one