Improved notification items in courses list
In the user's courses list, there are notification icons for things which have changed. These are very useful, but there are two problems:
- The documents icon is virtually always there, I'm not sure why. It seems to be triggered by some log files. It shouldn't.
- When clicking the item, it should jump to the changed item, instead of the tool's main page. Especially for documents, it is useful to see what was added, not so useful to know that something has been added.