fix missing alias

git-svn-id: https://svn.apache.org/repos/asf/archiva/trunk@1433451 13f79535-47bb-0310-9956-ffa450edef68
move together all alias to be more readable

git-svn-id: https://svn.apache.org/repos/asf/archiva/trunk@1433463 13f79535-47bb-0310-9956-ffa450edef68
use getUsername rather than getPrincipal

git-svn-id: https://svn.apache.org/repos/asf/archiva/trunk@1433464 13f79535-47bb-0310-9956-ffa450edef68