This guide has not entered its current state without contributions from many people, however, any errors that do remain are my own fault. Some have helped directly and others by merely existing. Here is a list of most of them (sorry to those that I forgot): Contributions: Vladimir Tamara Dibyendu Majumdar Gaute B Strokkenes Jean-Michel Friedt (French) John Tobey Jim Franklin Mohanaraj Prabhu Ramachandran Vicente , Fábio César Colombo Olivier Péningault Oliver Beck Those whose mere existence helped: Roland McGrath Marcus Brinkmann