Refs #23943 -- Removed an invalid generic_views test.

Using PUT as a method for the form element is no longer supported
as described in the ticket.
Removed empty gis models.py

Refs #22645.
Fixed #23812 -- Changed django.utils.six.moves.xrange imports to range
Updated advice on six.moves.range/xrange; refs #23812.
Ammended release notes for Refs #23969

(this includes a forward-port of 9189ef438ef885446b20bf4c017d3cf53335ab08)
Removed obsolete code for running test_loaders.py.

Running this file as a standalone script doesn't work anyway.
Fixed #23992 -- Optimized reorder_suite functions using OrderedSet
Fixed timesince translations for Korean

Refs #23989.
Forward port of eb632bfba from stable/1.7.x.
Merge pull request #3730 from tchaumeny/test_suite_reorder

Fixed #23992 -- Optimized reorder_suite functions using OrderedSet
Fixed #23991 -- Apparently, Oracle doesn't need the decimal field converter

Thanks Josh Smeaton for review.
Changed internal storing of abstract and concrete managers to be in a single list.

This commit prepares the internal manager layout to be serialized by
migrations; refs #23822.
Fixed #23822 -- Added support for serializing model managers in migration

Thanks to Shai Berger, Loïc Bistuer, Simon Charette, Andrew Godwin,
Tim Graham, Carl Meyer, and others for their review and input.