What do we do about detecting generator Scenarios/generator Scenario files?

[plocket]

Right now we're using a file naming convention. We could theoretically just check if the file has a generator Step in it. It would make excluding the files harder, but I bet we could do it.

Alternatively, keep the file naming convention and add steps.js Steps that take care of generator Steps. The Steps could give the author a message that they have named the files incorrectly or accidentally included multiple Scenarios in the file.