ENH: adding examples that illustrate use of some of the new widgets
ENH: adding examples that illustrate use of some of the new widgets

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