v0.5.1

Bugfixes:

• Fix related problem #30 get local images to work again
• Fix #47 open odf file in binary mode

Changes:

• retire old setup.py machinery in favour of pyproject.toml

v0.5.0

Major changes:

• migrate odpdown to Python3
• migrate odpdown from lpod-python to odfdo

Many thanks to Johannes Grassler for doing the migration work!