LDEV-1718 Reorganize learning page * The page needs to understand about tool sessions/groups. Learners should only see the comments and files added by members of their group (ie tool session) when the activity is grouped. Similarly, Learners should only see the tasks from authoring plus tasks added by members of their group.
LDEV-1766: Some of the methods weren't transactioned properly in the context file. Once the transactions were correct, had to tweak some calls to hibernate
LDEV-1766: Removing groups from branches on the define later screen in monitoring wasn't working as I was trying to remove them from the group end and that is only cascade all. Changed to remove from the branch end as that has all-delete-orphan. Also noticed that some of the methods weren't transactioned properly in the context file.
