Update project authors statements to Dartino

pkg/fletch_agent/lib/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.
 
 /// This comment describes the Fletch Agent's request and reply message format.
 ///
 /// Message requests all start with the following header:
 ///
 ///    -----------------------------------------
 ///    | Command (16 bits) | Version (16 bits) |
 ///    -----------------------------------------
@@ skipping 601 matching lines @@
   final String message;
   MessageDecodeException(this.message);
   String toString() => 'MessageDecodeException($message)';
 }
 
 class MessageEncodeException implements Exception {
   final String message;
   MessageEncodeException(this.message);
   String toString() => 'MessageEncodeException($message)';
 }