BUG: better error checking
BUG: better error checking

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