Fixed 1. warning due to unused variable 2. error due to ambiguous use of pow()
Fixed 1. warning due to unused variable 2. error due to ambiguous use of pow()

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