fixed API's getSpaxel
fixed API's getSpaxel

sdss/marvin,bretthandrews/marvin,sdss/marvin,albireox/marvin,albireox/marvin,albireox/marvin,bretthandrews/marvin,bretthandrews/marvin,albireox/marvin,sdss/marvin,bretthandrews/marvin,sdss/marvin