Update project authors statements to Dartino

pkg/flash_sd_card/lib/src/context.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:async';
 import 'dart:convert';
 import 'dart:io';
 
 import 'package:args/args.dart';
 import 'package:sdk_services/sdk_services.dart';
 
@@ skipping 204 matching lines @@
       await failure('Failed to determine SDK version');
     }
     return result.stdout.trim();
   }
 }
 
 class Failure implements Exception {
   final String message;
   Failure(this.message);
 }