ENH: Merge changes from main tree into VTK-5-2 branch. (cvs -q up -j1.87 -j1.88 Rendering/vtkOpenGLRenderer.cxx)
ENH: Merge changes from main tree into VTK-5-2 branch. (cvs -q up -j1.87 -j1.88 Rendering/vtkOpenGLRenderer.cxx)

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