ENH: Added masking rules for external libraries alglib and ftgl with gcc flags -Wconversion and -Wsign-conversion. Also try to fix Sun OS masking rule.
ENH: Added masking rules for external libraries alglib and ftgl with gcc flags -Wconversion and -Wsign-conversion. Also try to fix Sun OS masking rule.

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