TODO/bugs In SILC Server
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- o On normal server the channel count can go negative (like -3 channels).
+ o Server signoff notifys does not go to normal servers from routers.
+
+ o Channel user mode changes are notified unnecessarely when switching
+ to backup router on router crash.
o Change the sever to connect to another server from low ports (706)
and not from high ports. Currently we cannot do incoming connection
checking by remote port because the port is not fixed.
+ o Announcements are incomplete: channel topics are not announced,
+ user modes (UMODE) are not announced.
+
o Add a timeout to handling incoming JOIN commands. It should be
enforced that JOIN command is executed only once in a second or two
seconds. Now it is possible to accept n incoming JOIN commands