GafferAppleseedTest : Update for new Expression API.
GafferAppleseedTest : Update for new Expression API.

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