Update project authors statements to Dartino

pkg/mqtt/lib/src/mqtt_client.dart

-// Copyright (c) 2015, the Fletch project authors. Please see the AUTHORS file
+// Copyright (c) 2015, the Dartino project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE.md file.
 
 import 'dart:fletch';
 import 'dart:fletch.ffi';
 import 'package:ffi/ffi.dart';
 
 // MQTT success value
 const int MQTTCLIENT_SUCCESS = 0;
 
@@ skipping 237 matching lines @@
       switch (wordSize) {
         case 4:
           setInt32(offsets[0], value);
         case 8:
           setInt32(offsets[1], value);
         default:
           throw "IndexedStruct: Unsupported machine word size.";
       }
   }
 }