BUG: Fixed bug which caused crash if an invalid cellId was passed to GetCell
BUG: Fixed bug which caused crash if an invalid cellId was passed to GetCell

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