Making provided scope transtive

Internally junit:junit:4.10 actually points to junit:junit-dep:4.10. And that single hop is where things were breaking. This commit will fix all transitive issues related to the provided scope.

I'd actually recommend changing all junit:junit references to junit:junit-dep. The problem with junit:junit is that it bundles hamcrest in it, so you're limited in your ability to include a better hamcrest matching libraries since junit pollutes the classpath.