Update project authors statements to Dartino

pkg/flash_sd_card/lib/flash_sd_card.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:io';
 
 import 'src/context.dart';
 import 'src/platform_service.dart';
 
 const String gcsRoot = 'https://storage.googleapis.com';
@@ skipping 243 matching lines @@
     return false;
   }
   if (!bootFiles.contains('${mountDir.path}/kernel.img')) {
     await ctx.readLine(
         'WARNING: The SD card in ${sdCardDevice} does not look like a '
         'Raspbian SD card.\n\n'
         'Press Enter to continue anyway (Ctrl-C to cancel).');
   }
   return true;
 }