fix for multiple lazy commands handling

Author: manfredipist

lib/handlers/queryHandler.js

@@ -100,7 +100,11 @@ function queryHandler(id, type, service, subservice, attributes, callback) {
                     const lazyAttributes = filterLazy(device, attributes);
                     const funcList = lazyAttributes.map(generateQueryExecution.bind(null, apiKey, device)).reduce(concat, []);
                     async.series(funcList, function (err, results) {
-                        callback(err, results[0]);
+                        var json_object = {};
+                        results.forEach(function (result) {
+                            json_object = { ...json_object, ...result };
+                        });
+                        callback(err, json_object);
                     });
                 }
             });