Merge branch 'feature_UpgradeTo9LTS' into 'master'

Classes/Command/MigrateNewsCommandController.php

Classes/Controller/AbstractController.php

Classes/Controller/Ajax/LikeController.php

Classes/Controller/BackendController.php

Classes/Domain/Repository/FileReferenceRepository.php

Classes/Hooks/PageLayoutController.php

Classes/Service/ConfigurationService.php

Classes/Service/LicensingService.php

Classes/TCA/TcaProvider.php

Classes/Utility/BackendNewsUtility.php

Classes/Utility/ExtensionUtility.php

Classes/Utility/VersionUtility.php

Classes/ViewHelpers/Backend/ControlViewHelper.php

Classes/ViewHelpers/Backend/EditOnClickViewHelper.php

Classes/ViewHelpers/Backend/IconViewHelper.php

Classes/ViewHelpers/Backend/NewsItemTagsViewHelper.php

Classes/ViewHelpers/Backend/RecordIconViewHelper.php

Classes/ViewHelpers/Backend/TranslationLinksViewHelper.php

Classes/ViewHelpers/Backend/Widget/PaginateViewHelper.php

Classes/ViewHelpers/ExtendedIfViewHelper.php