Apelon DTS 4.0 Alpha release

Alpha release of Apelon DTS version 4.0 is now available at apelondts.org. This demonstration/evaluation release:
- Supports Namespace versioning.
- Leverages Java EE 6 platform for Server and Browser.
- Introduces new module architecture for Editor.
- Maintains backward compatible to DTS 3.5 at API level.