Synopsis:
   on [<modes>]msg [<serial#>] [-|^]<match> { <action> }

Description:
   This hook is triggered whenever the client receives a MSG from another
   client.

Parameters:
   $0    nickname of message sender
   $1-   text of message

See Also:
   msg(1); send_msg

Restrictions:
   IF your using a automated reply system, some caution is required. A
   continuous loop is possible, if you send a msg in reponse to a msg. So
   for example, nick1 is using an away script and is away. nick2 is using an
   away script and is also away.
	nick1 msg's nick2
	nick2 sends back an auto-reply.
	nick1 send back an auto-reply.
	.....


