Issue #2250119 by ParisLiakos, Devin Carlson: Run updates in a full environment.
Issue #2031717 by Berdir, swentel, fago: Make entity module not required.
Issue #2248767 by effulgentsia, beejeebus, alexpott: Use fast, local cache back-end (APCu, if available) for low-write caches (bootstrap, discovery, and config).
Issue #2330503 by pfrenssen, dawehner: Fixed [sechole] Inline templates pass through unsafe strings.
Issue #2326949 by plach, effulgentsia: Move entity-type-specific schema information from the storage class to a schema handler.