Rename fletch -> dartino

pkg/isolate/lib/isolate.dart

 // Copyright (c) 2015, the Dart 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 file.
 
 library isolate;
 
-import 'dart:fletch';
+import 'dart:dartino';
 
 class Isolate {
   final Channel _channel;
   bool _isJoined = false;
 
   Isolate._internal(this._channel);
 
   /**
    * Join an isolate by waiting for the result of
    * calling the spawned function.
@@ skipping 29 matching lines @@
   }
 }
 
 // Used to distinguish between the result of executing an isolate and it's
 // termination signal (we reuse the same Port at the moment).
 class _IsolateResult {
   final Object value;
 
   const _IsolateResult(this.value);
 }