Added format_lazy function to django.utils.text module.
Useful when dealing with relative complex lazy string concatenations
(e.g. in urls.py when translating urls in regular expressions).

PYTHONPATH is required for passing through test modules that don't
already exist within the Django tests/ directory.

DISPLAY is required for testing selenium on systems that use Xvfb.

HOME is where the Vagrant djangobox stores geoip data, but it could be
useful for other tox commands that require access to data outside of
Django.

Refs #24100.

Thanks Tim for the review.

Fixed #27044 -- Included already applied migration changes in the post-migrate state when the execution plan is empty.

Refs #24100.

Thanks tkhyn for the report and Tim for the review.

Thanks Tim Graham and Loïc Bistuer for the reviews.

Fixed #26998 -- Reverted some admin checks from checking field.many_to_many back to isinstance(field, models.ManyToManyField).

This partially reverts 983c158d

Generated correct admindocs URLs on Python 3. URLs generate 404s on
Python 2, as in older versions of Django.

Thanks Andrew Nester, Berker Peksag, and Tim Graham for reviews.

The current board has been re-elected.