Documentation has been commited to HEAD. The exchange has happened on HEAD. I tried to remove it from contrib on HEAD. Dirk's fixes have been added. It is as maintained as the previous version (if something breaks, it is a showstopper and someone will fix it. For the moment that is me). If the documentation does not make sense to you or you stumble across any problems in setting up bounce-management, feel free to ask and thereby help to improve the documentation.