old_contents: """Meta data for MineSweeper.
  
  Author: Yuhuang Hu
  Email : duguyue100@gmail.com
  """
  
  from __future__ import division, print_function, unicode_literals
  
  __all__ = ("__version__", "__author__", "__author_email__", "__url__")
  
  __version__ = "0.1.2"
  __author__ = "Yuhuang Hu"
  __author_email__ = "duguyue100@gmail.com"
  __url__ = "https://github.com/duguyue100/minesweeper"
  __download_url__ = "https://github.com/duguyue100/" + \
                     "minesweeper/tarball/0.1.2"
  
new_contents: """Meta data for MineSweeper.
  
  Author: Yuhuang Hu
  Email : duguyue100@gmail.com
  """
  
  from __future__ import division, print_function, unicode_literals
  
  __all__ = ("__version__", "__author__", "__author_email__", "__url__")
  
  __version__ = "0.1.3"
  __author__ = "Yuhuang Hu"
  __author_email__ = "duguyue100@gmail.com"
  __url__ = "https://github.com/duguyue100/minesweeper"
  __download_url__ = "https://github.com/duguyue100/" + \
                     "minesweeper/tarball/0.1.3"
  
subject: update for version