+09May20=======================================================================
+1. Show the route by which this PCxx came in progress debugging reports. In
+ some other words: the spot/wwv/wcy/ann message arrived first from this
+ connection.
+08May20=======================================================================
+1. Tidy up routing table
+2. Add new argument to show/version (ALL or list of regexes) that allow you
+ to see the version and build nos of all nodes on the system.
+07May20=======================================================================
+1. Revert changes made since 25Apr concerning IP address reconciliation.
25Apr20=======================================================================
1. Add maximum no of users on node to show/cluster.
2. Add ability to show last n lines of debugging ring buffer.