Thanks lee at semel.net for the report.

refs #17922.

Thanks to gwahl@fusionbox.com for the report.

Code borrowed from django.contrib.admin.tests. Without this, the class can
throw an exception with something like "The browser appears to have exited
before we could connect. The output was: Error: no display specified"

refs 6ca6c36f

Thanks cjerdonek for the report.

The test throws an error which Python 3.4 doesn't seem to catch as an
expectedFailure.

refs 7476d96f

Thanks coredumperror at gmail.com for the report and Tim Graham
for the review.

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

refs #12030.

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

Thanks un33k for the report.

Fixed #22335 -- Fixed popen_wrapper error on non-English Windows systems.

refs #12030.

This commit reverts 69d4b1c3 and tackle the issue from a different angle.
Models remain present in the project state, but are now ignored by the
autodetector.

Thanks to @timgraham for the review.

refs #14305.

Thanks Adrian Klaver for the report.

Previously, `ManifestFilesMixin.read_manifest` failed in Python 3
because `json.loads` accepts `str` not `bytes`.

Fixed #22257 -- Added file output option to dumpdata command.

Fixed this for both implementations of _alter_many_to_many, instead of
in `alter_db_table` itself (more implementations).