def search_servlet(path)
      script_name, path_info = @mount_tab.scan(path)
      servlet, options = @mount_tab[script_name]
      if servlet
        [ servlet, options, script_name, path_info ]
      end
    end
def search_servlet(path)
      script_name, path_info = @mount_tab.scan(path)
      servlet, options = @mount_tab[script_name]
      if servlet
        [ servlet, options, script_name, path_info ]
      end
    end
Finds a servlet for +path+