[1.7.x] Fixed incorrect filter name in docs/topics/i18n/translation.txt.

Backport of 38fc463fbfb9b74c38f1e8c33e4c99bc2274a880 from master
[1.7.x] Fixed #23956 -- Fixed migration creation for multiple table inheritance

Backport of 44927ba817a4ecf9834d429ff6c86bc5ac961305 from master
[1.7.x] Fixed typo in admin deprecation message.

Backport of d4e449d73029dd512acb5f156ee5b4e93189e7b9 from master
[1.7.x] Appeased spell checker.

Backport of 6a141832ab9be30d1bde4794560897bcdbe68fb6 from master