24Jun07=======================================================================
1. Fix the routing algorithms to allow route selection in the face of
incomplete trees of nodes (trees as produced by sh/newc).
-2. Fix the obscout issues which mean that many nodes get timed out after 3hrs.
+2. Fix the obscount issues which mean that many nodes get timed out after 3hrs.
3. Extend 4m to 70631 to cover CT.
23Jun07=======================================================================
1. fix basic deduping algorithm