Fixed #21989 - Modified first day of week in AU locale.

Although Australia is a signatory to ISO 8601, there's a lot of evidence to suggest that this is in the same category as "officially, the USA uses metric". See the ticket for supporting details.

db_parameters should respect an already existing db_type method and
return that as its type string. In particular, this was causing some
fields from gis to not be generated.

Thanks to @bigsassy and @blueyed for their work on the patch.

Also fixed #22260

Changed start of week for Australia to Sunday as requested in https://code.djangoproject.com/ticket/21989

Thanks to trac user merb for the report.

Thanks Jeroen Pulles for the report and Simon Charette for the review.

Hooks are quantum; you can not have an amount of them.

This seems worthwhile in its own right, but also works around an Oracle
bug (in versions 10 -- 11.1) where the use of Unicode would reset the
date/time formats, causing ORA-01843 errors.

Thanks Trac users CarstenF for the report, jtiai for the initial patch,
and everyone who contributed to the discussion on the ticket.

Failing test introduced in fix for refs #22210.

- Docs description of arguments mix up.
- Keep it from erroneously masking E332 check.
- Add checks E338 and E339, tweak message of E337.

refs #21092 and 8d7e048a

Tweak password admin change form view context. Refs #21293.

Thanks Wes Kendall for the report.

By removing the absolute positioning of the usertools div and using
float positioning, the #header div will expand based on the height of
its content.

Thanks EvilDMP for the report.

Thanks Benjamin White for the report.

Previously, saving a model instance to a non-related field (in
particular a FloatField) would silently convert the model to an Integer
(the pk) and save it. This is undesirable behaviour, and likely to cause
confusion so the validatio has been hardened.

Thanks to @PirosB3 for the patch and @jarshwah for the review.

Fixed #22239 -- Add auto detection of renamed models

Thanks Aymeric Augustin for the report.

Many newbies don't know what a factory method is, nor is it pertinent to the
information the tutorial hopes to convey.

Since we don't enforce order between apps, root packages of contrib apps
cannot import models from unrelated apps.

Fix #22005, refs #21719.

This reverts commit a718fcf2.