Changed UI and Logic of Taskdb, Added Security Features, Wrote Custom AuthenticationBean, Populate DB with three user roles
some fixes
Merge branch 'master' of https://github.com/alexander-informatik/amos-project-audi

Conflicts:
	Root/src/main/webapp/WEB-INF/i18n/messages_de.properties
	Root/src/main/webapp/WEB-INF/views/menu.jspx