Update project authors statements to Dartino

tests/pkg/gpio/gpio_mock_test.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 'package:expect/expect.dart';
 import 'package:gpio/gpio.dart';
 import 'package:gpio/gpio_mock.dart';
 
 main() {
   test1();
   test2();
@@ skipping 52 matching lines @@
   gpio.registerSetPin(setPin);
   Expect.throws(() => gpio.getPin(1), (e) => e is _MyException);
   Expect.throws(() => gpio.setPin(1, false), (e) => e is _MyException);
   Expect.isTrue(gpio.getPin(1));
   gpio.setPin(1, false);
   Expect.equals(2, getCount);
   Expect.equals(2, setCount);
 }
 
 class _MyException implements Exception {}