DoudouLinux CD

Right now the session menu is built upon GDM. Fake users are created to be able to set a different session for each entry, entries being users. This trick works well but it leads to several drawbacks:

• it is difficult to access data from one session to another since this is different users (see https://gna.org/bugs/index.php?16967)
• closing an application session restarts GDM, which is not very nice
• user's password are disabled on the whole system (= bad security settings…) this is not true anymore in the development version since we now use per-user security settings
• GDM may not be as tunable as we want, for example if we want to add animations or arrange activities icons non top to bottom
• the GDM exit procedure is different compared to the advanced session one

For these reasons it would be preferable to write a session menu application which would have similar features as the current one but would solve all the listed drawbacks.

NB: the only advantage of fake users is to give them different rights, for example to go or not on the Internet.