src/work/alpar/smart_graph_demo.cc
2004-11-13 Naming changes:
2004-09-29 hugo -> lemon
2004-09-17 - Name changing: XYZGraphSkeleton -> XYZGraph
2004-03-13 Dynamic maps became the defaults.
2004-03-10 New graph interface
2004-03-07 One more step toward the standars interface.