Remove the hard-coded path to dot (DOT_PATH directive), as it was preventing Wndows users to run doxygen. We rely on the fact that dot can be found in the PATH (Unix or Windows)
Remove the hard-coded path to dot (DOT_PATH directive), as it was preventing Wndows users to run doxygen. We rely on the fact that dot can be found in the PATH (Unix or Windows)

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