Django-read-only

------------------

* Drop Python 3.5 support.

------------------

* Allow ``EXPLAIN`` queries.

------------------

* Support Python 3.9.
* Add a hint on how to enable writes in the ``DjangoReadOnlyError`` message.

------------------

* Add support for a ``DJANGO_READ_ONLY`` setting, to allow finer grained
customization of when read-only mode is enabled.

------------------

* Initial release.