Update project authors statements to Dartino

pkg/fletch_agent/lib/agent_connection.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.
 
 library fletch_agent.agent_connection;
 
 import 'dart:async';
 import 'dart:io';
 import 'dart:typed_data';
 
 import 'messages.dart';
@@ skipping 87 matching lines @@
 
   VmData(this.id, this.port);
 }
 
 class AgentException implements Exception {
   String message;
   String toString() => 'AgentException($message)';
 
   AgentException(this.message);
 }