[icecast] use procd for init script

Signed-off-by: André Gaul <gaul@web-yard.de>

multimedia/icecast/files/icecast.init

@@ -2,13 +2,13 @@
 # Example script
 # Copyright (C) 2014 OpenWrt.org
  
+USE_PROCD=1
 START=99
 STOP=15
 
-start() {        
-        service_start /usr/bin/icecast -c /etc/icecast.xml -b
-}                 
- 
-stop() {          
-	service_stop /usr/bin/icecast
+start_service() {
+	procd_open_instance
+	procd_set_param command /usr/bin/icecast -c /etc/icecast.xml
+	procd_set_param respawn
+	procd_close_instance
 }