problem: see summary
why is it a problem: unituitive use of the 3D interpolation feature, in my opinion after accepting the 3D interpolation the contour postions and the unfinished segmentation image should be removed and therefore the finished complete segmentation node should show up with the same name (and not "... interpolation feedback)

steps to reproduce:

• compile recent MITK (my version was 7ca67412349b28bf78c072459dba8c9a2a8ce435) with segmentation bundle
• start MITK, load Pic3D, select it in the DataManager, click "New segmentation" in the view, call it "liver" and click ok
• do some nice 3D interpolation segmentation
• for each contour a contour node will be inserted right beneath the "liver" segmentation node
• click accept to accept the interpolation
• a new node will be created called "Pic3DSurface interpolation feedback" while the "liver" node and the contours will stay