Added links to code references in the docs for `response_add`,
`response_change` and `response_delete`.

This make it easier to control the delete flow.

Thanks mitsuhiko for the report.

Non-ASCII values are supported. Non-ASCII keys still aren't, because the
current parser mangles them. That's another bug.

They were defined in base when the mod_python handler used them. See bfcecbff.

Thanks hogbait for the report.

Fixed #11857 -- Added missing 'closed' property on TemporaryFile class.

- Note that 'Chris Adams' and 'Christopher Adams' are two different
  contributors.

Added myself to the contributors list for work on #21049

Fixed #12756: Improved error message when yaml module is missing.

Fixed #16502 -- Fixed a TemplateDoesNotExist error that should be an ImproperlyConfigured.

Assistance on the patch from #jambronrose.

When a BadSerializer instance is stubbed in for the yaml serializer,
make sure tests do not fail.

In order to verify the behavior of using the yaml serializer when yaml
is on the system, fake the ImportError when the serializer is being
registered.

It's now forbidden to call queryset.update(field=instance) when instance
hasn't been saved to the database ie. instance.pk is None.

Fixed #21058 -- Fixed debug view blowing up when no template is provided to the template rendering functions.

Assistance on this commit from @jambonrose.

adds fix for SingleObjectTemplateResponseMixin raising a TemplateDoesNotExist when it should have raised an ImproperlyConfigured. fixes 16502. by @ianawilson, @jambonrose

Fixed #19295 -- Documented that CachedStaticFilesStorage isn't compatible with runserver --insecure.