old_contents: """
      urls
  """
  
  urls = (
      '/', 'IndexHandler',
      '/articles', 'ArticleHandler',
      '/articles/([\d]+)', 'ArticleHandler',
      '/signin', 'LoginHandler',
      '/editor', 'ManageHandler',
      '/timeline', 'TimelineHandler',
      '/rss.xml', 'RssHandler',
      '/tags/([\d]+)', 'TagHandler',
      '/search', 'SearchHandler',
      '/settings', 'SettingsHandler',
  )
  
new_contents: """
      urls
  """
  
  urls = (
      '/', 'IndexHandler',
      '/articles', 'ArticleHandler',
      '/articles/([\d]+)', 'ArticleHandler',
      '/signin', 'LoginHandler',
      '/editor', 'ManageHandler',
      '/timeline', 'TimelineHandler',
      '/rss.xml', 'RssHandler',
      '/tags/([\d]+)', 'TagHandler',
      '/search', 'SearchHandler',
      #'/settings', 'SettingsHandler',
  )
  
subject: remove `settings` route