Qt → Label Relation

File in dox/vtk6-6.3.0+dfsg1/Rendering/Qt	Includes file in dox/vtk6-6.3.0+dfsg1/Rendering/Label
vtkQtLabelRenderStrategy.h	vtkLabelRenderStrategy.h
vtkQtTreeRingLabelMapper.h	vtkLabeledDataMapper.h