Fixed PrintSelf defect. Fixed crash when no controller is defined.
Fixed PrintSelf defect. Fixed crash when no controller is defined.

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