BUG:  Fix stretch metric for quad.  Remove extra sqrt() calls.
BUG:  Fix stretch metric for quad.  Remove extra sqrt() calls.

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