+12Jul07=======================================================================
+1. Change disconnection code so that nodes that are no longer routable are
+(all) cleared out.
+11Jul07=======================================================================
+1. improve speed of sh/c/n
+2. remove all $Id$ strings from cmd tree
09Jul07=======================================================================
1. remove check for PC93 from legacy nodes. This will allow PC10s to be
propagated correctly. Probably.