fixes #19988, allow html in ordinal for humanize
Fixed #11857 -- Added missing 'closed' property on TemporaryFile class.

- TemporaryFile now minimally mocks the API of the Python standard
  library class tempfile.NamedTemporaryFile to avoid AttributeError
  exceptions.
- The symbol django.core.files.NamedTemporaryFile is actually assigned
  as a different class on different operating systems.
- The bug only occurred if Django is running on Windows, hence why it
  was hard to diagnose.
Added tests for missing pyyaml.

This test makes sure an YAML import errors are communicated to the
caller rather than stating the serializer does not exist.
Added yaml directly into BUILTIN_SERIALIZERS.

The serializer definitely exists, but the dependent yaml module may not
be installed.  The register_serializer() function will catch exceptions
and will stub in a fake serializer object that will raise the exception
when the serializer is used.
Moved get_serializer() call in dumpdata command.

Moved the get_serializer() call within the condition that checks public
serializers.  This will allow exceptions other than
SerializerDoesNotExist to be raised in order to provide the caller with
useful information, e.g when pyyaml is not installed.
adds fix and test for when a template is not specified at all to render(). fixes #21058. by jambonrose and ianawilson
adds fix for SingleObjectTemplateResponseMixin raising a TemplateDoesNotExist when it should have raised an ImproperlyConfigured. fixes 16502. by @ianawilson, @jambonrose
Add -l alias for migrate --list
Moved a settings usage up the stack in utils/formats.py #unsettings
Removed unnecessary, leftover imports
Merge pull request #1579 from ianawilson/ticket_21058

Fixed #21058 -- Fixed debug view blowing up when no template is provided to the template rendering functions.

Assistance on this commit from @jambonrose.
Minor factorization.
Fixed #11811 -- Data-loss bug in queryset.update.

It's now forbidden to call queryset.update(field=instance) when instance
hasn't been saved to the database ie. instance.pk is None.
Added myself to the contributors list.
fixed test name from an old, overly specific iteration of the test
Updated NoYamlSerializerTestCase to run with yaml.

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.
Added name to AUTHORS (per Russell Keith-Magee)
Fixed existing tests to handle BadSerializer.

When a BadSerializer instance is stubbed in for the yaml serializer,
make sure tests do not fail.
Merge pull request #1580 from ianawilson/ticket_16502

Fixed #16502 -- Fixed a TemplateDoesNotExist error that should be an ImproperlyConfigured.

Assistance on the patch from #jambronrose.
Cleanup commit after peer review.