Fixed #19994 -- Typo.

Thanks akshar for the report.
Used more precise test assertions.
One more EMPTY_VALUES replacement following 22be90dd17

Thanks Loic Bistuer for catching this omission. Refs #19989.
Update link to django-mssql project
Merge pull request #884 from manfre/patch-1

Fixed #19996 - Updated link to django-mssql project in docs.
Fixed #19543 -- implemented SimpleLazyObject.__repr__

Thanks to Florian Hahn for the patch
PEP8 cleanup of functional.py
Merge pull request #882 from loic/testfix

Fixed minor warnings in tests.
Fixed #19951 -- Admin: Invalid model PK values shouldn't cause 500 status.

Avoid ValueError in admin when passing a string as PK for an inherited
model with an integer PK field.

Thanks ikks for the patch. See also #11191.
Added missing method in the dummy database backend.
Fixed #19997 -- Added custom EMPTY_VALUES to form fields

Thanks Loic Bistuer for the report and the patch.
Fix 19916. Smarter tokenizing of contrib.comment's templatetags arguments.
Added a ManyToManyField(db_constraint=False) option, this allows not creating constraints on the intermediary models.
Adde two "versionadded" markers, thanks to mYk for noticing.
Merge pull request #850 from bmispelon/ticket-19916

Fix 19916. Smarter tokenizing of contrib.comment's templatetags arguments
Fixed #15363 -- Renamed and normalized to `get_queryset` the methods that return a QuerySet.
Fixed a regression in forms changed_data

Thanks Loic Bistuer for spotting the regression and the initial
patch. Refs #16612.
Replaced proj4 testing by a regex
Fixed #16594 -- Added wkt 3D support for GEOS geometries

This requires GEOS >= 3.3.0 to function properly. On previous
versions, the Z dimension will simply not appear in the wkt.
Disabled OpenLayers editing for 3D geometries (unsupported).
Fixed #19923 -- Display tracebacks for non-CommandError exceptions

By default, show tracebacks for management command errors when the
exception is not a CommandError.
Thanks Jacob Radford for the report.