Cleaner constructor/destructor for internals
Cleaner constructor/destructor for internals

Change-Id: I65917b03d89447d6c8fedcddfcf4ead834668f0e

demarle/VTK,sumedhasingla/VTK,hendradarwin/VTK,cjh1/VTK,candy7393/VTK,sankhesh/VTK,ashray/VTK-EVM,demarle/VTK,gram526/VTK,sankhesh/VTK,cjh1/VTK,keithroe/vtkoptix,mspark93/VTK,sumedhasingla/VTK,ashray/VTK-EVM,sumedhasingla/VTK,SimVascular/VTK,mspark93/VTK,keithroe/vtkoptix,mspark93/VTK,aashish24/VTK-old,collects/VTK,msmolens/VTK,collects/VTK,gram526/VTK,jmerkow/VTK,msmolens/VTK,berendkleinhaneveld/VTK,biddisco/VTK,ashray/VTK-EVM,keithroe/vtkoptix,sankhesh/VTK,aashish24/VTK-old,jmerkow/VTK,sumedhasingla/VTK,collects/VTK,msmolens/VTK,sankhesh/VTK,sankhesh/VTK,berendkleinhaneveld/VTK,keithroe/vtkoptix,johnkit/vtk-dev,collects/VTK,cjh1/VTK,demarle/VTK,ashray/VTK-EVM,SimVascular/VTK,msmolens/VTK,msmolens/VTK,mspark93/VTK,ashray/VTK-EVM,hendradarwin/VTK,berendkleinhaneveld/VTK,jmerkow/VTK,demarle/VTK,hendradarwin/VTK,jmerkow/VTK,demarle/VTK,gram526/VTK,ashray/VTK-EVM,aashish24/VTK-old,mspark93/VTK,mspark93/VTK,sumedhasingla/VTK,msmolens/VTK,biddisco/VTK,hendradarwin/VTK,hendradarwin/VTK,sumedhasingla/VTK,gram526/VTK,SimVascular/VTK,biddisco/VTK,keithroe/vtkoptix,candy7393/VTK,johnkit/vtk-dev,johnkit/vtk-dev,candy7393/VTK,cjh1/VTK,candy7393/VTK,johnkit/vtk-dev,SimVascular/VTK,sankhesh/VTK,berendkleinhaneveld/VTK,demarle/VTK,collects/VTK,sumedhasingla/VTK,SimVascular/VTK,msmolens/VTK,mspark93/VTK,candy7393/VTK,collects/VTK,johnkit/vtk-dev,SimVascular/VTK,berendkleinhaneveld/VTK,ashray/VTK-EVM,johnkit/vtk-dev,demarle/VTK,berendkleinhaneveld/VTK,sankhesh/VTK,candy7393/VTK,demarle/VTK,aashish24/VTK-old,berendkleinhaneveld/VTK,hendradarwin/VTK,sankhesh/VTK,biddisco/VTK,gram526/VTK,hendradarwin/VTK,mspark93/VTK,gram526/VTK,sumedhasingla/VTK,aashish24/VTK-old,msmolens/VTK,gram526/VTK,SimVascular/VTK,candy7393/VTK,keithroe/vtkoptix,jmerkow/VTK,biddisco/VTK,johnkit/vtk-dev,keithroe/vtkoptix,candy7393/VTK,jmerkow/VTK,biddisco/VTK,ashray/VTK-EVM,aashish24/VTK-old,biddisco/VTK,cjh1/VTK,jmerkow/VTK,SimVascular/VTK,gram526/VTK,keithroe/vtkoptix,jmerkow/VTK,cjh1/VTK