Add license for ribbon theme
Add license for ribbon theme

kwangkim/landslide,adamzap/landslide,ptisserand/landslide,adamzap/landslide,ptisserand/landslide,exciteresearch/landslide,ionelmc/python-darkslide,ptisserand/landslide,adamzap/landslide,kwangkim/landslide,kwangkim/landslide,ionelmc/python-darkslide,ionelmc/python-darkslide,exciteresearch/landslide,exciteresearch/landslide