[PROTOCOL.mux] correct protocol names and add a couple of missing protocol number defines; patch from bert.wesarg AT googlemail.com
[PROTOCOL.mux clientloop.h mux.c readconf.c readconf.h ssh.1 ssh.c] mux support for remote forwarding with dynamic port allocation, use with LPORT=`ssh -S muxsocket -R0:localhost:25 -O forward somehost` feedback and ok djm@
at the time.