Thanks wim@ for the suggestion and Nicolas Noé for the patch.

Fixes a Python 3.x regression introduced in a19e9d80

Fixed #20142 -- Added error handling for fixture setup

Thanks to maxbublis for the report and sergeykolosov for the patch.

Fixed #20446 -- Documentation for SmallIntegerField does not clarify 'small'

Thanks bmispelon for the suggestion and djangsters for the patch.

Allows for any iterable, not just lists or tuples, to be used as
the inner item for a list of choices in a model.

Fixed #13285: populate_xheaders breaks caching

TestCase._fixture_setup disables transactions so,
in case of an error, cleanup is needed to re-enable
transactions, otherwise following TransactionTestCase
would fail.

This mixin is useful whenever deprecating a large part of Django.

Fixed #18761 -- Added whitespace stripping to URLField and SlugField.

Removing a backend configured in AUTHENTICATION_BACKENDS should not
raise an exception for existing sessions, but should make already
logged-in users disconnect.
Thanks Bradley Ayers for the report.

#20432: Fix for GroupAdmin test

Also, streamline the use of 0 and None between cache backends.

Fixed argument order for localized_fields to ensure backwards compatibility

Fixed #19919: get_language_from_request() disregards en-us and en

when matching Accept-Language

Thanks Stephane Benchimol for the report and the initial script and
mfandreas for the patch.

Fixed #13546 -- Easier handling of localize field options in ModelForm

Fixes #20235 - MultipleObjectMixin requires object_list in kwargs

This is so MultipleObjectMixin can be used in the same way as
SingleObjectMixin.

It can fail in hard-to-diagnose ways.

Fixed #20433: extracted catalog compilation code from view.

Made introspection always return a unicode as column name on Oracle.
Thanks aaugustin for review and suggestion to use force_text().

The failure was triggered by a cache leak.