SConstruct : Don't install .osl files for all OSL shaders
SConstruct : Don't install .osl files for all OSL shaders

Depending on timestamps, Arnold would actually recompile the .osl file instead of using the .oso bytecode.  This is both inefficient and could cause strang failures, because we don't necessarily set up the include path during rendering, since we're expecting to be using compiled .oso's.

boberfly/gaffer,lucienfostier/gaffer,ivanimanishi/gaffer,hradec/gaffer,ivanimanishi/gaffer,johnhaddon/gaffer,boberfly/gaffer,GafferHQ/gaffer,GafferHQ/gaffer,johnhaddon/gaffer,appleseedhq/gaffer,hradec/gaffer,andrewkaufman/gaffer,andrewkaufman/gaffer,hradec/gaffer,ImageEngine/gaffer,ivanimanishi/gaffer,appleseedhq/gaffer,appleseedhq/gaffer,andrewkaufman/gaffer,boberfly/gaffer,ImageEngine/gaffer,johnhaddon/gaffer,lucienfostier/gaffer,andrewkaufman/gaffer,hradec/gaffer,johnhaddon/gaffer,GafferHQ/gaffer,appleseedhq/gaffer,GafferHQ/gaffer,hradec/gaffer,ivanimanishi/gaffer,lucienfostier/gaffer,ImageEngine/gaffer,andrewkaufman/gaffer,ImageEngine/gaffer,lucienfostier/gaffer,johnhaddon/gaffer,boberfly/gaffer,GafferHQ/gaffer