Update project authors statements to Dartino

tests/fletch_tests/messages.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.
 
 /// Messages used by fletch_test_suite.dart to communicate with test.py.
 library fletch_tests.messages;
 
 import 'dart:convert' show
     JSON;
 
 import 'dart:io' as io show stdout;
@@ skipping 213 matching lines @@
   String get type => 'TestStdoutLine';
 
   Map<String, dynamic> toJson() {
     Map<String, dynamic> result = super.toJson();
     result['line'] = line;
     return result;
   }
 
   String toString() => "$type($name, $line)";
 }