Good point about using the bootstrapper to tailor the scanning if the stdout warnings become a problem. Heck, once _I_ get 1.18.0 at the Day Job, I'm planning on throwing a custom bootstrapper in anyhow, if only for the (minimal) speed boost.

I think this plans avoids the need for the complicated managed/unmanaged detector. I'll give the current code another quick read, but I think I'm happy.