+15Oct02=======================================================================
+1. made some detail changes to the raw USDB data and the routines that
+generate and operate on them. There were some bugs involving a few 'missing'
+callsigns which been fixed. Also there were some, for our purposes, invalid
+callsigns in the database which have been removed (down to about 820,000
+entries now). You should really update your database.
14Oct02=======================================================================
1. added show/usdb command as a simple, direct interface to the information
available in the USDB stuff.