added a test for Spaxel with load=False
added a test for Spaxel with load=False

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