Log Message:
py-pypiserver: updated to 1.3.1

1.3.1:
- FIX: previously, it was possible to upload packages with hashing algorithms
  other than md5, but downloading them again with pip was impossible due to
  incorrect truncation of the hash. This has been fixed!
- FIX: argument parsing would previously fail for the short form of
  ``--help``, due an incorrect operator used during comparison.
- DOC: significant improvements to formatting and consistency in the README.