… instead of filling with 0's and 1's
…ng able to access via integer indices
…t checks if CRVAL1 is present at least. that way if CRVAL1 is present then it can build the wavelength solution using CRVAL1, CRPIX1 and NAXIS1. this commit stems from using ELODIE spectra which uses (like many others) CRVAL1, CRPIX1 and NAXIS1 as its wavelength calibration headers
…sian smoothed changed behaviour. Added residual return on full mode in spec fit.
…ds to be implemented later.
… offset, so the wavelength map was incorrect. added this in
… x2), (x3, x4)] and set order=0 -- untested