gituser/production: links for flake8

gituser/production flake8-3.8.4-py2.py3-none-any.whl
gituser/production flake8-3.7.9-py2.py3-none-any.whl
gituser/production flake8-2.1.0.tar.gz
gituser/production flake8-2.1.0-py2-none-any.whl