Move from setup.py to pyproject.toml
Relax version requirement for Matplotlib
Update Manifest.in with .png for example files
Fix map display bug in Readme.md
Add scatter option in Track.map(), e.g. for color-coded tracks
Fix importlib_metadata -> importlib.metadata, add __author__ and __li… …cense__
Define __version__ automatically in __init__.py
Add Manifest.in and update install information (PyPI)