Main authors and maintainers: Grzegorz Krawczyk <krawczyk@mpi-sb.mpg.de> Rafal Mantiuk <mantiuk@mpi-sb.mpg.de> Contributors: Miloslaw Smyk <thorgal@wfmh.org.pl> Alexander Efremov <aefremov@mpi-sb.mpg.de> Dorota Zdrojewska <dzdrojewska@wi.ps.pl> Jan Otop <jotop@mpi-sb.mpg.de>