Fix javac command line to only use -source 1.5
Fix javac command line to only use -source 1.5

Change-Id: Icedc9748e2fca201a53cd797ce89129e4541dffe

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