Rename fletch -> dartino

tests/os/native_process_test.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.
 
-import 'dart:fletch.ffi';
-import 'dart:fletch.os';
+import 'dart:dartino.ffi';
+import 'dart:dartino.os';
 
 import 'package:expect/expect.dart';
 import 'package:file/file.dart';
 
 void main() {
   testStartDetachedValid();
   testStartDetachedNullPath();
   testStartDetachedEmptyPath();
   testStartDetachedInvalidPath();
   testStartDetachedNonExecutablePath();
@@ skipping 36 matching lines @@
 }
 
 void testStartDetachedNonExecutablePath() {
   // Invalid executable.
   var nonExecFile = new File.temporary('OsTest');
   Expect.throws(() => NativeProcess.startDetached(nonExecFile.path, null),
       (e) => e == "Failed to start process from path '${nonExecFile.path}'. "
                   "Got errno 13");
   File.delete(nonExecFile.path);
 }