allow exceptions in DeleteNonReferencedReferencesUpdater
cleanup
ref #8096: move cache updater and service methods return updateResult
ref #6241 replaced @created by @since in cdmlib
ref #6241 change @date to @since (fix)
ref #6241 change @date to @since
adapted deleteResult
remove subTreeConfigurator and updater from io package
smaller changes in ForSubtreeConfigurator
remove setSecundum in io package
ref #6730: set result to Abort if media is used elsewhere
fix #3740 implement setPublish for subtrees
ref #3740 further refactor operations in io layer and add publishForSubtreeUpdater
ref #3740 refactor operations in io layer