LDEV-1530: To remove the Hibernate error occuring when two users in one tool session start forum together, I have modified how the content is updated so that cloned content is updated when an edit is done in Monitoring. See also LDEV-649.
change many:1. Instruction files/ topics save point in authoring2. Only topic creator editable topic3. Cascade delete children topicsetc...A stable version in Learner and Author function