Better behaviour on role change:
* If an account is promoted superuser, give it access to everything
* If an account is demoted from his position as superuser, remove all its accesses.
see #204
* Activate by default the 'simple user' mode for domain administrators (when creating a new accoun)
* Don't forget to grant access to objects created by domain admins to super admins
see #204
* Use of jQuery in place of Mootools
* Most of the custom mootools plugins have been ported to jQuery
* Use of bootstrap from Twitter in place of the old CSS
* Most of the admin templates have been reworked
* The sievefilters extension has been ported
* The postfix autoreply extension is almost done
* more...
see #204