[MRM-1791] ldap group mapping support for active directory

git-svn-id: https://svn.apache.org/repos/asf/archiva/redback/redback-core/trunk@1539894 13f79535-47bb-0310-9956-ffa450edef68
formatting

git-svn-id: https://svn.apache.org/repos/asf/archiva/redback/redback-core/trunk@1539895 13f79535-47bb-0310-9956-ffa450edef68
fix unit test

git-svn-id: https://svn.apache.org/repos/asf/archiva/redback/redback-core/trunk@1539896 13f79535-47bb-0310-9956-ffa450edef68