Upload version 0.2.2 on pypy

[gustavi]

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The current version on pypi (0.2.1) do not installs with Python 3.7 :

$ pip install django-munin==0.2.1
Collecting django-munin==0.2.1
Exception:
Traceback (most recent call last):
  File "/home/gustavi/code/zds/zds-site/zdsenv/lib/python3.7/site-packages/pip/_internal/cli/base_command.py", line 179, in main
    status = self.run(options, args)
  File "/home/gustavi/code/zds/zds-site/zdsenv/lib/python3.7/site-packages/pip/_internal/commands/install.py", line 315, in run
    resolver.resolve(requirement_set)
  File "/home/gustavi/code/zds/zds-site/zdsenv/lib/python3.7/site-packages/pip/_internal/resolve.py", line 131, in resolve
    self._resolve_one(requirement_set, req)
  File "/home/gustavi/code/zds/zds-site/zdsenv/lib/python3.7/site-packages/pip/_internal/resolve.py", line 294, in _resolve_one
    abstract_dist = self._get_abstract_dist_for(req_to_install)
  File "/home/gustavi/code/zds/zds-site/zdsenv/lib/python3.7/site-packages/pip/_internal/resolve.py", line 242, in _get_abstract_dist_for
    self.require_hashes
  File "/home/gustavi/code/zds/zds-site/zdsenv/lib/python3.7/site-packages/pip/_internal/operations/prepare.py", line 334, in prepare_linked_requirement
    progress_bar=self.progress_bar
  File "/home/gustavi/code/zds/zds-site/zdsenv/lib/python3.7/site-packages/pip/_internal/download.py", line 865, in unpack_url
    unpack_file_url(link, location, download_dir, hashes=hashes)
  File "/home/gustavi/code/zds/zds-site/zdsenv/lib/python3.7/site-packages/pip/_internal/download.py", line 763, in unpack_file_url
    unpack_file(from_path, location, content_type, link)
  File "/home/gustavi/code/zds/zds-site/zdsenv/lib/python3.7/site-packages/pip/_internal/utils/misc.py", line 626, in unpack_file
    flatten=not filename.endswith('.whl')
  File "/home/gustavi/code/zds/zds-site/zdsenv/lib/python3.7/site-packages/pip/_internal/utils/misc.py", line 503, in unzip_file
    zip = zipfile.ZipFile(zipfp, allowZip64=True)
  File "/usr/lib/python3.7/zipfile.py", line 1222, in __init__
    self._RealGetContents()
  File "/usr/lib/python3.7/zipfile.py", line 1289, in _RealGetContents
    raise BadZipFile("File is not a zip file")
zipfile.BadZipFile: File is not a zip file

I don't really know why but the current git version installs fine :

$ pip install git+https://github.com/ccnmtl/django-munin
Collecting git+https://github.com/ccnmtl/django-munin
  Cloning https://github.com/ccnmtl/django-munin to /tmp/pip-req-build-3pinlsc_
Installing collected packages: django-munin
  Running setup.py install for django-munin ... done
Successfully installed django-munin-0.2.2

I can investigate a little if you want.