fixed memory leaks and error in pixel type
fixed memory leaks and error in pixel type

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