work as the child shapes of the group had to be added to 
the document after loading so i put them into the loading
context. After loading the document, the apps KoShapeControllerBase
implementaion has to transfer the collected shapes from the
context to itself. The creation of the group shape is 
hardwired into the shape registry as we do not want a shape
group appear inside the shape selector (when using a KoShapeGroupFactory).
Additionally i changed the shapes to save their global
transformation matrix, as that is what they are in ODF.


svn path=/trunk/koffice/; revision=698767