Thanks Tim Graham for suggestion and review.

Forwardport of f5740af8 from stable/1.7.x

The functionality it was used for was removed in Django 1.7.

Thanks projectgus for the suggestion.

Thanks mila for the suggestion.

Translators may want to change the irc link pointing to a
language-specific channel.

The Model.from_db() is intended to be used in cases where customization
of model loading is needed. Reasons can be performance, or adding custom
behavior to the model (for example "dirty field tracking" to issue
automatic update_fields when saving models).

A big thank you to Tim Graham for the review!

It's a shim that calls the actual createsuperuser management command and
it's been marked as deprecated since Django 1.0.

Thanks rpbarlow for the suggestion; and loic, akaariai, and jorgecarleitao
for reviews.

Thanks scibi for the report.

Thanks mrknacky at gmail.com for the report and gajimenezmaggiora
for the draft patch.

Thanks cjerdonek for the suggestion.

Thanks Keryn Knight for the suggestion.

When 'to_field' is specified with a FK, then we need to check the pk value
the object.

Thanks radim.blazek@gmail.com for the report and initial patch.
Testing is tricky, as the failure condition is a bit of an edge
case. inspectapp.InspectDbTests should at least guarantee non
regression.

Decoupled behavior and style from the RelatedFieldWidgetWrapper and
ForeignKeyRawIdWidget.

No need to restart the server when a translation file changes.
Refs #9523. Thanks artscoop for the report and Tim Graham for
the review.

Fixed #22903 -- Fixed migration generation if index_together or unique_together is removed from a model.