Fixed #23400 -- Added "Remove 'south' from INSTALLED_APPS" to upgrade instructions.

Thanks dgrant for the report.
Fixed #23302 -- Added --name/-n option to makemigrations command
Added dates to release notes.
Added stub release notes for 1.7.1.
Fixed typo in docs/topics/db/transactions.txt.
Fixed #23409 -- Extract PasswordResetForm.get_users method.

Allows easier customization of policies regarding which users are allowed to
reset their password.

Thanks Aymeric for review.
Fixed #18757, #14462, #21565 -- Reworked database-python type conversions

Complete rework of translating data values from database

Deprecation of SubfieldBase, removal of resolve_columns and
convert_values in favour of a more general converter based approach and
public API Field.from_db_value(). Now works seamlessly with aggregation,
.values() and raw queries.

Thanks to akaariai in particular for extensive advice and inspiration,
also to shaib, manfre and timograham for their reviews.