Issue #2149197 by penyaskito, mikey_p, vijaycs85, herom: Replace format_interval with \Drupal::service('date')->formatInterval().
Issue #2248991 by marco, tstoeckler, xjm: Rename the 'log' field to 'revision_log' in Node and CustomBlock.
Issue #2138073 by damiankloip, xjm: Remove module_load_include() call from NodeController::revisionOverview().
