We did this for 1.6 and it was very effective. 95%+ of fixes which merge
during the alpha are backported, as the policy is "all but really major
features". It's easier to just not merge any really major features.
After beta, we have feature freeze so we need to backport bugs to stable
but not features, so then the branch makes sense.

Fixes #21864: Close string in example of custom lookups doc page.

Thanks to Chris Barna for the report.

Thanks marktranchant.

This is consistent with Python's official documentation
and it's a sphinx recommendation too[1].

[1] http://sphinx-doc.org/markup/desc.html#dir-method

Refs #21855.

Thanks Giggaflop and Jennifer Casavantes.

Thanks russellm for the report.

Fixed #21852 -- Make migration writer serialize iterators

We need to figure out how to deprecate django-admin.py, but for now this
should do the trick.

Fixed typo on docstring

This is to prevent an import of django.test causing an import (and thus
an implicit checks regisration) for an app that may not be in
`INSTALLED_APPS`.

Better fixes may be possible when #20915 and/or #21829 are addressed.

Thanks to @carljm for the report.

It uses a static manifest file that is created when running
collectstatic in the JSON format.

Thanks to Bruno Renie for the report.

These warnings all emerged as the result of the introduction of the checks framework.

Thanks to Anssi Kääriäinen for the report.

Thanks to @cjerdonek for the report.

Refs #21821

Refs #21821

Refs #21821

Refs #21821.