5. Hangup clients on HUP signals. I originally ignored them, for reasons that
are now lost in the mists of time. HUP signals now cause clients to die
(cleanly) and disconnect everything correctly.
+6. Added show/time command
21Nov99=======================================================================
1. lose extraneous rubbish after the callsign as sent by BBSes.
2. Change end label on sh/moon to RGain dB rather than Loss dB.