removed OpenGL state caching
removed OpenGL state caching

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