added ctx-default.xml
included application-base.js into UI
realized login-behaviour
added en/contact.html
added lang/de/disclaimer.html (and started translating)
updated and translated disclaimer
updated test.html
updated log4j.properties
Updated: static pages (contact.html & disclaimer.html)
Updated: links to static pages in index.html including window styling
Fixed: Some spelling errors in lang.js
Added: new UI-related MessageManager