Rename fletch -> dartino

lib/os/native_process.dart

 // 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.
 
-part of dart.fletch.os;
+part of dart.dartino.os;
 
 class NativeProcess {
 
   /// Starts a native (OS) process with stdin, stdout, and stderr detached.
   /// Returns the pid of the spawned process.
   static int startDetached(String path, List<String> arguments) {
     List<ForeignMemory> allocated = [];
 
     // Helper method to ensure we know what to free.
     int allocateString(String str) {
@@ skipping 29 matching lines @@
             "${Foreign.errno}";
       }
       return pid;
     } finally {
       for (var memory in allocated) {
         memory.free();
       }
     }
   }
 
-  @fletch.native static int _spawnDetached(int argumentsAddress) {
+  @dartino.native static int _spawnDetached(int argumentsAddress) {
     throw new UnsupportedError('_spawnDetached');
   }
 }