+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.
08Jul07=======================================================================
1. put in a temporary fix to the crashing on incoming PC10 talks, whilst I
try to work out how it is happening.