Removed all vtkSource, vtkPolyDataToPolyData references
Places where the producer of a dataObject is desired, an alternative method is followed.
--Directly use the algorithm producing dataObject
--Create a trivialProducer and set its output to dataObject
--Use the PRODUCER() information key from vtkStreamingDemandDrivenPipeline

Conflicts:

	ParaViewCore/ClientServerCore/vtkMPIMoveData.cxx
	ParaViewCore/ClientServerCore/vtkPVTemporalDataInformation.cxx

Change-Id: Ib01e8b25a6e61b0169f86f6dc3dbc775fe9e0919