[1.7.x] Fixed #22932: Documented circular dependency issues with swappable user
[1.7.x] Removed non-existent reference to args/kwargs in manager docs.

Backport of 5842d8eba4 from master
[1.7.x] Clarified that LocMemCache is per-process; refs #7639.

Thanks projectgus for the suggestion.

Backport of c37000ab04 from master
[1.7.x] Fixed #22940 -- Added missing string iterpolation parameters in migrations.writer error.
[1.7.x] Fixed #18108 -- Added instructions for translating documentation.

Thanks Claude Paroz.

Backport of 1a3bec4a26 from master