Correct Lithuanian short date format.
Fixed #19432 -- Provided better error message for get_object_or_404

Thanks Kit Sunde for the report and Brian Holdefehr for the initial
patch.
Fixed #19462 -- Made assertQuerysetEqual detect undefined ordering

If there are more than one values to compare against and the qs isn't
ordered then assertQuerysetEqual will raise a ValueError.
Fixed a couple of stale tests caused by patch for #19462

Commit was 088d3bc2f84b6b68fee7e5de053b58049bd110e7
Removes PHP references
Fixed #2304 -- Documented TRANSACTIONS_MANAGED.
Added 'license' value to the setup.py fixes #19430
Merge pull request #585 from blongden/clarify_php_refs

Removed poor PHP references
Fixed #9962 - Added a testing tutorial.

Thank-you Daniele Procida for the first draft
and shaibi, Aymeric, and others for the reviews.
Fixed #9589 -- Made development web server more robust in the presence of a wider variety of code errors.

Thanks goes to contributor with Trac user 'berto' for the patch.
Fixed a couple of docstring typos.
Fixed #19342 - Added new tutorials to the 1.5 release notes
Fixed #19344 - Documented how to run django-admin in a virtualenv on Windows.

Thanks Hourann Bosci for the patch.
Fixed #19384 -- Documented the behavior of custom managers on abstract models.

This documents the behavior introduced by cc337a74, which is BACKWARDS
INCOMPATIBLE for any attempt to invoke a method on a manager using the
abstract class as the calling class (e.g., AbstractBase.objects.do_something())

Thanks to mhsparks for the report.
Fixed #19472 -- Documented the testing requirements and tools for custom User models.

Thanks to gcc for the report.
Fixed #19412 -- Added PermissionsMixin to the auth.User heirarchy.

This makes it easier to make a ModelBackend-compliant (with regards to
permissions) User model.

Thanks to cdestigter for the report about the relationship between
ModelBackend and permissions, and to the many users on django-dev that
contributed to the discussion about mixins.
Fixed #19368 -- Ensured that login error messages adapt to changes in the User model.

Thanks to un33k for the report.
Corrected tests depending on the error message on the AuthenticationForm.

Refs #19368, and the fix introduced in 27f8129d64292868f6a328f7bf9a1bed67967ff3.
Fixed #19469 -- Removed opts.get_ordered_objects() and related code

The code was dead-code since 2006.
Fixed #18816 -- Removed "trim" argument from add_filter()

The trim argument was used by split_exclude() only to trim the last
join from the given lookup. It is cleaner to just trim the last part
from the lookup in split_exclude() directly so that there is no need
to burden add_filter() with the logic needed for only split_exclude().