Wagtail-instance-selector

- Django 3 compatibility: replaced calls to django.conf.urls.url with django.urls.path or re_path.
PR: https://github.com/ixc/wagtail-instance-selector/pull/9.
- Frontend: fixed a bug where the actions container used for the select button might not exist.
PR: https://github.com/ixc/wagtail-instance-selector/pull/8
- Frontend: simplified object selection in list items by consolidating on the
data-instance-selector-pk attribute.
PR: https://github.com/ixc/wagtail-instance-selector/pull/8

- Django 3 import fix.
PR: https://github.com/ixc/wagtail-instance-selector/pull/2.

- Added hooks to enable selection on non-standard list views.

- PyPI fix.

- Initial release.