Conflict with Closure.trampoline

[mikea]

ReallyExecutable.trampoline() clashes with Closure.trampoline(). That's why it should be used like this:

reallyExecutable { delegate.trampoline() }

[danthegoodman]

Hmm. That is obviously less than ideal. I think I'll rename it to trampolining(). I don't want to do a major version bump here, so I'll keep trampoline() and deprecate it.