K 10 svn:author V 3 phk K 8 svn:date V 27 2004-08-08T06:46:27.000000Z K 7 svn:log V 298 Give classes a version number and refuse to touch classes which are not understood. This makes room for additional binary compatibility in the future. Put fields in the class for the geom's methods and initialize the methods of a new geom from these fields. This saves some code in all classes. END