fixed initialisation of Spectrum
fixed initialisation of Spectrum

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