Added catch {load vtktcl} and fixed Poly objects (now PolyData)
Added catch {load vtktcl} and fixed Poly objects (now PolyData)

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