Django migrations with Lino

With Lino version 19.8 and later, you can do Django migrations with Lino.

Each Lino production site which defines their own languages setting must have its own migrations package and run their local makemigrations before actually running migrate.

With languages and babelfields, the developer cannot make migrations for you, they must be build for every production site.

Migrating from a pre Lino 19.8 site

(TODO)