Added some override and noexcept specifiers, overrode setNonRealtime() and setPlayHead() for AudioProcessorGraph. I've also removed the redundant AudioProcessor parameter-related implementations from AudioProcessorGraph.
Edit: I've no idea what the hell happened, but a paste into a code style thing removes nearly all the separating lines! (I'm using the latest Chrome). Oh, and I can't upload the files on an edit: "The file could not be uploaded." Also, I can't upload any code file on a reply: I'm limited to these extensions - txt png jpg pdf gif. (Grr..)
You can find the changes here: