fixed compiler warnings
fixed compiler warnings

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