AME-8331 Migrate to OpenDJ 3.0 SDK and Embedded Server
Fix for OPENAM-3702 - review: FR-112 Including OpenDJ 2.6.1 and adjusting OpenDJ upgrade procedure.
CR-2002 AME-1652 Embedded OpenDJ 2.4.6 -> 2.6
Final copies to complete maven_merge branch to be promoted to a final Trunk Version.