Improved HTTP logging

httplistener/generic.go

 	buf.ReadFrom(request.Body)
 	json.Unmarshal(buf.Bytes(), &message)
 
-	log.Infof("[%s] %s", message.To, message.Body)
+	log.Infof("%s [%s] %s", request.RemoteAddr, message.To, message.Body)
 
 	if message.To != "" && message.Body != "" {
 		hl.irc.Privmsgf(message.To, message.Body)

httplistener/grafana.go

 		msg += fmt.Sprintf(" %s:%f", match.Metric, match.Value)
 	}
 	msg += " " + alert.RuleUrl
+
+	log.Infof("%s [%s] Grafana alert", request.RemoteAddr, viper.GetString("http.listeners.grafana"))
 	hl.irc.Privmsgf(viper.GetString("http.listeners.grafana"), msg)
 }