Issue #2277945 by Jose Reyero: Fixed Typed configuration implements TypedDataInterface improperly.
Issue #2279363 by tstoeckler: Fixed file_managed.uri should not specify a prefixed unique key.
Issue #2238217 by effulgentsia, neclimdul, martin107, tim.plunkett, cweagans, kim.pepper, xjm: Introduce a RouteMatch class.
Issue #2291777 by alexpott: Fixed Random fail in LanguageFallbackTest.
Issue #2290157 by marcingy: Convert comment_user_predelete query to entity query.
Issue #2291445 by marcingy: Convert comment_entity_predelete query to entity query.
Issue #2183957 by vijaycs85, chx, Gábor Hojtsy: Provide configuration schema for Migration module.
Merge remote-tracking branch 'origin/8.x' into mink-testing-2232861-larowlan