Merge branch '8.x' of git.drupal.org:project/drupal into 8.x

core/CHANGELOG.txt

core/MAINTAINERS.txt

core/includes/authorize.inc

core/includes/bootstrap.inc

core/includes/cache.inc

core/includes/common.inc

core/includes/config.inc

core/includes/file.inc

core/includes/form.inc

core/includes/install.core.inc

core/includes/install.inc

core/includes/menu.inc

core/includes/module.inc

core/includes/pager.inc

core/includes/theme.inc

core/includes/update.inc

core/lib/Drupal/Core/Cache/CacheFactory.php

core/lib/Drupal/Core/Cache/MemoryBackend.php

core/lib/Drupal/Core/Config/CachedStorage.php

core/lib/Drupal/Core/Config/DatabaseStorage.php