Add some syncdb deprecation stuff into the deprecation doc
Fixed #22331 -- Made MigrationAutodetector ignore unmanaged models.

This commit reverts 69d4b1c and tackle the issue from a different angle.
Models remain present in the project state, but are now ignored by the
autodetector.
Fixed field deconstruction tests failures introduced by 1506c71a95.

refs #12030.
Fixed #22335 -- Fixed popen_wrapper error on non-English Windows systems.
Merge pull request #2481 from zsiciarz/ticket-22335

Fixed #22335 -- Fixed popen_wrapper error on non-English Windows systems.
Fixed Python 3.4 test failure.
Fixed #22029 -- Removed obsolete advice on registering migrate/syncdb signal handlers.

All signals should now be registered in AppConfig.ready().

Thanks un33k for the report.
Fixed the PostGIS circular imports caused by 1506c71a95.

Thanks to @loic for the help and @timgraham for the review.

refs #12030.
Fixed #22114 -- Stopped adding trailing slashes in URLField.to_python

Thanks coredumperror at gmail.com for the report and Tim Graham
for the review.
Forgotten slash removal in d320863878
Fixed #21941 -- documentation of the kwargs param to django.conf.urls.url()

The reference documentation for the url() function now links to the example
elsewhere in the documentation.
The explanation of URL processing explains how the kwargs parameter is
combined with the results of the regexp match