dxqueue v1.1.0

This release adds tracing, improved error handling, java docs and an example Designer project.

Original code by Peter Lambrechtsen

First published by Peter Lambrechtsen on Novell Cool Solutions in 2010, see https://community.microfocus.com/t5/Identity-Manager-Tips/Sending-a-XDS-Message-from-one-driver-to-another/ta-p/1777175