Main motivation for this new release was to support Wagtail 5.
- Drop support for Wagtail<3.0
- Added workaround for image_node.filter_spec -> image_node.filter_specs change in Wagtail 5
- Some small spelling fixes and extended docstrings
- pre-commit autoupdate
- make tox check against python (3.9, 3.10, 3.11) and wagtail (3, 4, 5)
- fixed codecov.io workflow
- added supported python and wagtail versions to readme via badges