VTK-3603 - cleanup utils: JSON=>HTML and JSON<=HTML (call it HTML instead of DOM for consitancy)
VTK-3603 - cleanup utils: JSON=>HTML and JSON<=HTML (call it HTML instead of DOM for consitancy)

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