deba [Thu, 11 Nov 2004 10:17:20 +0000] rev 981
maxUndirEdgeId modified to maxId(UndirEdge)
maxEdgeId modified to maxId(Edge)
deba [Thu, 11 Nov 2004 09:31:55 +0000] rev 980
maxNodeId() and maxEdgeId() changed to maxId(Node) and maxId(Edge)
getNodeObserverRegistry() and getEdgeObserverRegistry() changed to
getObserverRegistry(Node) and getObserverRegistry(Edge)
IdMappableGraphExtender erased