Merge remote-tracking branch 'upstream/8.x' into kernel

.htaccess

core/MAINTAINERS.txt

core/includes/authorize.inc

core/includes/bootstrap.inc

core/includes/common.inc

core/includes/config.inc

core/includes/database.inc

core/includes/file.inc

core/includes/gettext.inc

core/includes/menu.inc

core/includes/pager.inc

core/includes/schema.inc

core/includes/theme.inc

core/includes/update.inc

core/lib/Drupal/Component/Archiver/ArchiveTar.php

core/lib/Drupal/Component/Archiver/ArchiverException.php

core/lib/Drupal/Component/Archiver/ArchiverInterface.php

core/lib/Drupal/Component/Archiver/Zip.php

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

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