big refactorings

Hi,

due to the demands for making Nuhra a real framework, there have been several changes and very (extreme) big refactorings within the sources of Nuhra.

The documentation is not yet up-to-date to this changes, so if you want to or have to adapt your apps to the actual Nuhra sources, it's the best way to look into the demos (NuhraSetDemo) for how to adapt the changes best.
Your IDE also will help you. ;-)

Sorry for the troubles ...