Add save_into_fd and load_from_fd
Add save_into_fd and load_from_fd

holzman/glideinwms-old,bbockelm/glideinWMS,holzman/glideinwms-old,bbockelm/glideinWMS,holzman/glideinwms-old,bbockelm/glideinWMS,bbockelm/glideinWMS