ENH: check order of valid_range and reverse if incorrect
ENH: check order of valid_range and reverse if incorrect

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