v1.5.0

This release includes major updates to the documentation. The Python and C++ user guides have been overhauled. Example Jupyter notebooks are now included in the documentation.

We are also building wheels for Python 3.9 as of this release. Tracktable 1.6, due in summer 2021, will be the last version to support Python 3.5. (Python 3.5 has reached the end of its support window. See https://www.python.org/downloads/release/python-3510/ for details.)

See trajectory/tracktable!211 for detailed changes.