Login werkend met nieuwe methodes van Ramon.
Fixed LoginServlet not setting userId + role null.
fixed hibernateutils over 9000 sessions
Merge branch 'master' of https://github.com/utwente-di/di04
Show and process messages. Modified backoffice/index.jsp for this
purpose
Merge branch 'getNotification' of https://github.com/utwente-di/di04.git into getNotification