fixed some ref counting errors
fixed some ref counting errors

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