baseDn can be different from groups dn

git-svn-id: https://svn.apache.org/repos/asf/archiva/redback/redback-core/trunk@1428586 13f79535-47bb-0310-9956-ffa450edef68
cleanup test

git-svn-id: https://svn.apache.org/repos/asf/archiva/redback/redback-core/trunk@1428588 13f79535-47bb-0310-9956-ffa450edef68