Added min/max limits to StandardOptions crop window plug.
Added min/max limits to StandardOptions crop window plug.

This is quite important, because out of range values upset 3delight.

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