D3 update (version 2.7) to distribution in March

The feature update (version 2.7) improves D3's usability even more and has new helpful features based on user feedback and user interface analysis. In addition especially administration panel has been developed as well as system management and new features have been made configurable. Advanced management features are useful in implementation and therefore taking the new D3 solution to use is even easier and faster than before. This version is also audited by a third party according to our procedure.