Including the Cocoa header in the PlayerPROKit prefix header since we do use some AppKit functions.
Make MADLoadMADFileCString an exported symbol in PlayerPROCore: it’s needed for PlayerPROKit.
Adding comments to PPMusicObject header.
Better work on changing the internal file name and mad info on PPMusicObjectWrapper.
More work on making PPMusicObjectWrapper use NSFileWrapper.
More methods in the PPDriver class.