* progress #50 - foundation of a new structure

* progress #50 - first chapter of manual moved

* progress #50 - moved cpp api, removed unused doxygen xml

* progress #50 - manual chapters "device server writing" and
"getting started" moved to the new structure

* progress #50 - corrected toc of "getting started"

* progress #50 - manual chapter "device server model" moved to the new structure

* progress #50 - manual chapters related to client (atk and cpp) moved to
 the new structure

* progress #50 - moving advanced section (in progress)

* progress #50 - cleaning warnings, java device guideline moved

* progress #50 - moving advanced section (in progress), IDL and reference moved, some cleaning done

* progress #50 - moving/splitting advanced section of the manual
 (in progress)

* progress #50 - moving/splitting advanced section of the manual finished

* progress #50 - manual appendix on starting moved to adminstration/deployment

* progress #50 - manual appendix on notifd2db moved to adminstration/services and linked from events

* progress #50 - appendix on property file moved to adminstration/deployment, manual splitting and moving finished. It has been removed from tree.

* progress #50 - DS Design Guideline moved to device-api

* progress #50 - pytango moved to device-api and linked also from client-api

* progress #50 - documentation guide moved to development/contribution

* completing #50 - updates firs pages

* completing #50 - fixing misspellings