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

core/includes/bootstrap.inc

core/includes/entity.api.php

...lib/Drupal/Core/Config/Entity/ConfigStorageController.php

core/lib/Drupal/Core/CoreBundle.php

core/lib/Drupal/Core/Entity/DatabaseStorageController.php

core/lib/Drupal/Core/Entity/DatabaseStorageControllerNG.php

core/lib/Drupal/Core/Entity/Entity.php

core/lib/Drupal/Core/Entity/EntityFormController.php

core/lib/Drupal/Core/Entity/EntityFormControllerNG.php

core/lib/Drupal/Core/Entity/EntityInterface.php

core/lib/Drupal/Core/Entity/EntityNG.php

...b/Drupal/Core/Entity/EntityStorageControllerInterface.php

core/lib/Drupal/Core/Entity/Field/FieldInterface.php

core/lib/Drupal/Core/Entity/Field/FieldItemBase.php

core/lib/Drupal/Core/Entity/Field/FieldItemInterface.php

core/lib/Drupal/Core/Entity/Field/Type/BooleanItem.php

core/lib/Drupal/Core/Entity/Field/Type/DateItem.php

...lib/Drupal/Core/Entity/Field/Type/EntityReferenceItem.php

core/lib/Drupal/Core/Entity/Field/Type/EntityTranslation.php

core/lib/Drupal/Core/Entity/Field/Type/EntityWrapper.php