Issue #2100183 by plopesc: Remove the changed() method from EntityInterface.
Issue #2068329 by peximo, plach, LinL, marcingy, Désiré, penyaskito, herom, chx: Convert user SQL queries to the Entity Query API.
Issue #2028535 followup by tstoeckler: Provide a TourTestBase class for use by core and contrib modules.
Issue #2176831 by chx: CustomBlockSaveTest is not saving body.