add new services for ldap mapping via the ui

git-svn-id: https://svn.apache.org/repos/asf/archiva/redback/redback-core/trunk@1440548 13f79535-47bb-0310-9956-ffa450edef68
use a better name for the interface

git-svn-id: https://svn.apache.org/repos/asf/archiva/redback/redback-core/trunk@1440549 13f79535-47bb-0310-9956-ffa450edef68