deba [Wed, 05 Oct 2005 13:19:30 +0000] rev 1706
Removing NeedCopy
deba [Wed, 05 Oct 2005 13:18:51 +0000] rev 1705
Removing smart references
deba [Wed, 05 Oct 2005 13:17:42 +0000] rev 1704
findUndirEdge, ConUndirEdgeIt
some modification in the undir graph extenders