made test_cube_flux_from_api an expected failure
made test_cube_flux_from_api an expected failure

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