Fixed #22940 -- Added missing string iterpolation parameters in migrations.writer error.

Forwardport of f5740af868 from stable/1.7.x
Fixed #22935 -- Changed ForeignKey.default_error_messages['invalid'] to refer to correct field.

Thanks Tim Graham for suggestion and review.
Fixed #18108 -- Added instructions for translating documentation.

Thanks Claude Paroz.
Fixed typo in docs/ref/models/instances.txt
Fixed #22941 - Added support for domain-only links with chars after the TLD to urlize.

It now works with something like google.com/foo/bar
Removed myself from committers.
Fixed #21755 -- Added ForeignKey support to REQUIRED_FIELDS.

This allows specifying ForeignKeys in REQUIRED_FIELDS when using a
custom User model.

Thanks cjerdonek and bmispelon for suggestion and timgraham for review.
Fixed #22924 -- Added a note about MEDIA_URL in templates.

Thanks raphael.herouart at gmail.com