SD-552 : Implement REST API for content item locking
SD-552 : Implement REST API for content item locking
SD-552 : Implement REST API for content item locking
SD-552 : Implement REST API for content item locking
fix(item-lock): fix behave tests
fix(notification): set default ordering of notifications

order them `_created` `DESC`
fix(views): fix storing of view creator