Attempting to add() and remove() an object related by a 'through' model
now raises more descriptive AttributeErrors, in line with set and
create().

Hopefully fixes a test failure on Jenkins.

Replaced _parse_content_type with cgi.parse_header

Also they should only be raised if allow_syncdb does exist, not just if
allow_migrate does not.

Refs comments on 25084101

Report and original patch from jrief.

Thanks Keryn Knight for the report.

Thanks to John Giannelos for the initial patch.

Added searched_locations in finders module. Added verbosity flag level 2 on 'findstatic'
command that will output the directories on which it searched the relative paths.

Reported by ccurvey. Initial patch by Jonas Svensson and Vajrasky Kok.

Original patch by Vajrasky Kok. Reviewed by Florian Apolloner, Aymeric Augustin.

Thanks lagovas.lagovas at gmail.com for the report.

When a method decorator was used in conjunction with a decorator
implemented as a descriptor, method_decorator did not correctly respect
the method binding.

Thanks for Graham Dumpleton for the report and initial patch.

Fixed #21856: Allow Empty DATABASES Setting

Used available_attrs in method_decorator

There wasn't any file locking under Windows unless PyWin32 was
installed. This removes that (undocumented) dependency by using ctypes
instead.

Thanks to Anatoly Techtonik for writing the ctypes port upon which this
is based.

Thanks rmoe for the report and the patch.

Thanks Aymeric Augustin for the suggestion and review.

Remove check_migrations from the runserver command and use the new checks framework to check for unapplied migrations. Don't check for migrations if the DATABASES setting is empty.

Adds Australian English (en_AU) to locale conf, which differs from
American English in date formatting and spelling, and continues
to diverge from British English in spelling (and first-day-of-week
according to the current en_GB locale format.py).

The transifex language project to match this patch has been requested.

Thanks Zach Smith for the patch.

Thanks keturn for the reporti, Chris Medrela for details and
Tim Graham for the review.
Refs #19915.

Overriding the error messages now works for both unique fields, unique_together
and unique_for_date.

This patch changed the overriding logic to allow customizing NON_FIELD_ERRORS
since previously only fields' errors were customizable.

Refs #20199.

Thanks leahculver for the suggestion.

Thanks Aymeric Augustin and Simon Charette for reviews.