ENH: various improvements and bug fixes
ENH: various improvements and bug fixes

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