+21May99=======================================================================
+1. made set/nodx work again.
+2. mode dx stuff queue nicely again.
+18May99=======================================================================
+1. Added announce dup checking.
+2. Added system announce filtering.
+08May99=======================================================================
+1. Added a bit more checking to the rcmd thing to make more sure that this
+rcmd isn't coming from an imposter. Not possible to prevent everything
+ofcourse, just make it a bit harder.
+2. altered set/lockout and set/privilege so that they can't executed remotely.
+3. Added some code to reject rubbish (with invalid binary characters) protocol
+or user lines as input.
+4. prevented PC command being executed remotely :-)
+05May99=======================================================================
+1. change the connection overlap from an abort to a disconnect.
+02May99=======================================================================
+1. Added the mechanism for doing user spot filtering for spots in the cluster
+(no user control just yet - but sysops can do it).
+2. Fixed problem with nodes sending out the node lists of isolated nodes.
+30Apr99=======================================================================
+1. Try to make it even more AK1A friendly by putting the node list out in the
+'correct' order.
+2. added code so that local users and commands go to all connected nodes
+INCLUDING the isolated ones.
+26Apr99=======================================================================
+1. added set/user command as a hack, please use this with care, there is
+very little checking.
+2. added export_opernam.pl which is a basic reader of AK1A opernam.dat files
+to stdout