Auto-save forum posts
When posting in a forum thread, many students report that sometimes their session is closed before they can finish their reply.
We should find a way to store this reply and leave it in an invisible state until it is finished by the user.
If the (PHP) session expires, then when reloading the page the user should give his/her password and be able to recover the partial post.
The "autosave" feature should happen every 30 seconds or so.
If it works well, there are many other places where we would like to use this "autosave" feature, so make the logic generic enough.
It is possible that this has to wait until Chamilo v10 because of database changes. If it looks too complicated to make it generic for version 1.9.8 without database changes, then mark it for v10 and leave it. Don't loose time on it.