feat(gateway): allow to change the light color

Major fix on devices, set output only when no payload.sid is present

node-red-contrib-xiaomi-configurator/xiaomi-configurator.js

@@ -6,6 +6,7 @@ module.exports = function(RED) {
         this.deviceList = n.deviceList || [];
         this.key = n.key;
         this.ip = n.ip;
+        this.sid = this.sid || n.sid;
 
         var node = this;
     }