added 512 option
added 512 option

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