LoginServlet added.
Organize css
Fixed refreshing page logging you out.
Logging in as admin will now redirect you to the backoffice.
Merge branch 'master' of https://github.com/utwente-di/di04.git

Conflicts:
	kunstmenu/src/main/webapp/Login.jsp
Hi-res beautiful logo
Oeps fix
Merge branch 'master' of https://github.com/utwente-di/di04.git
added message class/Hibernate.newCriteria()
Merge branch 'master' of https://github.com/utwente-di/di04
Login werkend met nieuwe methodes van Ramon.