Issue #2251111 by jibran | dawehner: Remove format_rss_item() and format_rss_channel().
Issue #2339021 by catch: Fixed Incorrect call to l() in system_token_info.
Issue #2303361 by tim.plunkett, kim.pepper: Replace instances of deprecated drupal_valid_path with PathValidator.
Issue #2337709 by tim.plunkett: Convert form_state_values_clean() to FormStateInterface::cleanValues().
Issue #2338011 by benjf, Sutharsan: Cleanup of locale tests.
Issue #2339135 by tim.plunkett: Fixed EntityViewsDataTest is located in the wrong directory/namespace.
Issue #2337911 by martin107: LanguageUrlRewritingTest checkUrl $language parameter definition is incorrect.