Update project authors statements to Dartino

pkg/flash_sd_card/lib/src/platform_service.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:power_management/power_management.dart' as power_management;
 import 'package:sdk_services/sdk_services.dart';
 import 'context.dart';
@@ skipping 348 matching lines @@
     var mountDir = await (await ctx.tmpDir).createTemp();
     // Explicitly mount the first partition which is the boot partition.
     var partition = device.startsWith('mmcblk') ? '${device}p1' : '${device}1';
     var result = await ctx.runProcess('mount', [partition, mountDir.path]);
     if (result.exitCode != 0) {
       await ctx.failure('Failed to mount $device', result.stderr);
     }
     return mountDir;
   }
 }