No longer saving scripts directly in ExecutableRender.
No longer saving scripts directly in ExecutableRender.

Since the LocalDispatcher saves the script, and the Execute UIs use the dispatcher, we shouldn't need this hack anymore.

Fixes #310.

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