Docserver: Update app version parsing since AppEngine started including /

chrome/common/extensions/docs/server2/cron_servlet_test.py

 #!/usr/bin/env python
 # Copyright 2013 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 import unittest
 
-from appengine_wrappers import GetAppVersion
 from app_yaml_helper import AppYamlHelper
 from content_providers import IgnoreMissingContentProviders
 from cron_servlet import CronServlet
 from empty_dir_file_system import EmptyDirFileSystem
+from environment import GetAppVersion
 from extensions_paths import (
     APP_YAML, CONTENT_PROVIDERS, CHROME_EXTENSIONS, PUBLIC_TEMPLATES, SERVER2,
     STATIC_DOCS)
 from gcs_file_system_provider import CloudStorageFileSystemProvider
 from github_file_system_provider import GithubFileSystemProvider
 from host_file_system_provider import HostFileSystemProvider
 from local_file_system import LocalFileSystem
 from mock_file_system import MockFileSystem
 from servlet import Request
 from test_branch_utility import TestBranchUtility
@@ skipping 219 matching lines @@
     self.assertEqual(AppYamlHelper.GenerateAppYaml('2-1-0'),
                      file_systems[-1].ReadSingle(APP_YAML).Get())
     self.assertEqual('<h1>y</h1> u not update!',
                      file_systems[-1].ReadSingle(storage_html_path).Get())
     self.assertEqual('important content!',
                      file_systems[-1].ReadSingle(static_txt_path).Get())
 
 
 if __name__ == '__main__':
   unittest.main()