skip_target and NOTICE/PRIVMSG target handling

	I have a tentative patch for skip_target() that handles Unreal's 
multi-prefix NOTICEs. I'm thinking that it's a bit hackish atm however, 
so want to know how I can get access to the isupport PREFIXes so that I 
can support any prefix.

	This is what I have at the moment, and it works for me.

static const char *skip_target(const char *target)
{
        while ((target[i] == '~') || (target[i] == '&') || (target[i] == 
'@') || (target[i] == '%') || (target[i] == '+')) {
                i++;
        };

        if(ischannel(target[i])) {
                target += i;
        };
        return target;
}

	I would appreciate pointers however on making this more universal, as I 
doubt that it will be accepted as-is.

-- 
[Crash programs] fail because they are based on the theory that, with 
nine women pregnant, you can get a baby a month.
		-- Wernher von Braun

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