VTK-1152 added introductionImageCaptionPropDef for collection, articlelisting and eventlisting.
VTK-1152 added introductionImageCaptionPropDef for collection, articlelisting and eventlisting.

vtkio/vtk,vtkio/vtk,vtkio/vtk,vtkio/vtk,vtkio/vtk,vtkio/vtk,vtkio/vtk,vtkio/vtk