added sort to the listdir call so that files are sorted correctly, which was failing in ubuntu 10.10
added sort to the listdir call so that files are sorted correctly, which was failing in ubuntu 10.10

ptisserand/landslide,adamzap/landslide,netantho/epicslide,adamzap/landslide,exciteresearch/landslide,kwangkim/landslide,n1k0/landslide,adamzap/landslide,netantho/epicslide,n1k0/landslide,exciteresearch/landslide,exciteresearch/landslide,ptisserand/landslide,ionelmc/python-darkslide,ionelmc/python-darkslide,kwangkim/landslide,ptisserand/landslide,ionelmc/python-darkslide,kwangkim/landslide