python-flake8-pyi-19.2.0-bp151.2.3

- Remove workaround for two previously failing tests fixed upstream
- Add build dependency on Python 3.6+
- Add LICENSE
- Udpate to v19.2.0
  * Support 3.7
  * Be explicit in setup.py about Python 3.6+
  * add `.flake8` to manifest file
  * Use --stdin-display-name as filename when reading from stdin
  * Add rules for checking an empty class
  * Add a check for non-ellipsis, non-typed arguments
  * Coding style improvements

- Use tarball from the master as of 2018-12-08 to test #16

- Initial packaging effort for flake8-pyi 18.3.1