Pymediainfo

Bug fixes
* Fix `TypeError` when parsing certain files (100)

Bug fixes
* Succeed in fixing upload to PyPI from Travis (tests were broken by v5.0)

Bug fixes
* Travis: attempt to fix upload to PyPI

Breaking changes
* :warning: Drop support for Python 2.7, 3.4 and 3.5
* `MediaInfo.parse`: remove the deprecated `text` parameter

New features
* `MediaInfo`: add shortcuts to tracks by type: `audio_tracks`, `video_tracks`, etc. (95)

Miscellaneous
* Add type hints and a lot of code quality checks to the CI (pylint, mypy, black, etc.)
* Run tests with tox

:warning: This is the last major release that supports Python 2.7, 3.4 and 3.5. Version 5 will only support Python ≥ 3.6

New features
* `MediaInfo.parse`: add support for file-like objects (96)
* Update bundled MediaInfo to [v20.09](https://github.com/MediaArea/MediaInfoLib/releases/v20.09) (Windows and OSX wheels)
* Improvements to documentation
* Python 3.9 is now officially supported

Bug fixes
* Fix version detection for Read the Docs documentation builds