ENH: Merge changes from main tree into VTK-5-4 branch. (cvs -q up -j1.252 -j1.253 Rendering/vtkRenderer.cxx)
ENH: Merge changes from main tree into VTK-5-4 branch. (cvs -q up -j1.252 -j1.253 Rendering/vtkRenderer.cxx)

naucoin/VTKSlicerWidgets,ashray/VTK-EVM,SimVascular/VTK,collects/VTK,msmolens/VTK,candy7393/VTK,daviddoria/PointGraphsPhase1,cjh1/VTK,ashray/VTK-EVM,mspark93/VTK,Wuteyan/VTK,arnaudgelas/VTK,keithroe/vtkoptix,ashray/VTK-EVM,ashray/VTK-EVM,biddisco/VTK,jeffbaumes/jeffbaumes-vtk,johnkit/vtk-dev,biddisco/VTK,candy7393/VTK,mspark93/VTK,spthaolt/VTK,berendkleinhaneveld/VTK,collects/VTK,msmolens/VTK,msmolens/VTK,hendradarwin/VTK,cjh1/VTK,ashray/VTK-EVM,candy7393/VTK,sumedhasingla/VTK,aashish24/VTK-old,aashish24/VTK-old,johnkit/vtk-dev,gram526/VTK,msmolens/VTK,naucoin/VTKSlicerWidgets,sankhesh/VTK,spthaolt/VTK,demarle/VTK,candy7393/VTK,jeffbaumes/jeffbaumes-vtk,aashish24/VTK-old,msmolens/VTK,demarle/VTK,biddisco/VTK,naucoin/VTKSlicerWidgets,sumedhasingla/VTK,daviddoria/PointGraphsPhase1,johnkit/vtk-dev,keithroe/vtkoptix,sumedhasingla/VTK,berendkleinhaneveld/VTK,SimVascular/VTK,spthaolt/VTK,candy7393/VTK,johnkit/vtk-dev,spthaolt/VTK,hendradarwin/VTK,keithroe/vtkoptix,berendkleinhaneveld/VTK,keithroe/vtkoptix,biddisco/VTK,demarle/VTK,jeffbaumes/jeffbaumes-vtk,msmolens/VTK,sankhesh/VTK,biddisco/VTK,collects/VTK,jeffbaumes/jeffbaumes-vtk,arnaudgelas/VTK,sankhesh/VTK,candy7393/VTK,aashish24/VTK-old,mspark93/VTK,msmolens/VTK,Wuteyan/VTK,gram526/VTK,cjh1/VTK,sankhesh/VTK,spthaolt/VTK,sankhesh/VTK,aashish24/VTK-old,berendkleinhaneveld/VTK,candy7393/VTK,Wuteyan/VTK,msmolens/VTK,demarle/VTK,sumedhasingla/VTK,ashray/VTK-EVM,cjh1/VTK,berendkleinhaneveld/VTK,sumedhasingla/VTK,sankhesh/VTK,hendradarwin/VTK,demarle/VTK,sumedhasingla/VTK,SimVascular/VTK,mspark93/VTK,jmerkow/VTK,jmerkow/VTK,arnaudgelas/VTK,cjh1/VTK,naucoin/VTKSlicerWidgets,jmerkow/VTK,demarle/VTK,SimVascular/VTK,Wuteyan/VTK,jmerkow/VTK,gram526/VTK,jeffbaumes/jeffbaumes-vtk,gram526/VTK,biddisco/VTK,mspark93/VTK,candy7393/VTK,keithroe/vtkoptix,johnkit/vtk-dev,johnkit/vtk-dev,keithroe/vtkoptix,naucoin/VTKSlicerWidgets,Wuteyan/VTK,gram526/VTK,daviddoria/PointGraphsPhase1,sumedhasingla/VTK,ashray/VTK-EVM,demarle/VTK,collects/VTK,jmerkow/VTK,SimVascular/VTK,hendradarwin/VTK,daviddoria/PointGraphsPhase1,collects/VTK,jmerkow/VTK,mspark93/VTK,arnaudgelas/VTK,gram526/VTK,aashish24/VTK-old,mspark93/VTK,gram526/VTK,jmerkow/VTK,johnkit/vtk-dev,arnaudgelas/VTK,SimVascular/VTK,sankhesh/VTK,hendradarwin/VTK,spthaolt/VTK,keithroe/vtkoptix,jmerkow/VTK,daviddoria/PointGraphsPhase1,SimVascular/VTK,jeffbaumes/jeffbaumes-vtk,mspark93/VTK,SimVascular/VTK,collects/VTK,sumedhasingla/VTK,sankhesh/VTK,demarle/VTK,biddisco/VTK,spthaolt/VTK,ashray/VTK-EVM,Wuteyan/VTK,naucoin/VTKSlicerWidgets,Wuteyan/VTK,hendradarwin/VTK,gram526/VTK,berendkleinhaneveld/VTK,cjh1/VTK,berendkleinhaneveld/VTK,keithroe/vtkoptix,daviddoria/PointGraphsPhase1,arnaudgelas/VTK,hendradarwin/VTK