[aprssig] Universal APRS messaging

[Steve Dimse]

So now the send message cgi indicates it has sent the message and  
forwards to the msg display cgi. Gotta work now, but coming tonight, a  
web form to enter the messages so you don't have to edit URLs, and a  
link from each line of the msg page to send a message to that station.  
The net result will be a pretty natural chat system using APRS IS as  
the communication backbone. Cool.

Nice to not have to worry about the consequences of your creations.  
Thanks to all those who freed me!

This is actually more accountable than the APRS IS, the IPs with each  
message are logged like all web requests and the logs held for four  
weeks, so if anyone sees any abuse and feels like tracking it down I  
can supply the IP that sent any message. I won't be watching though.

Steve K4HG