Improved handling of FITS header cards when saving to FITS; bitpix is computed when not already set
Improved handling of FITS header cards when saving to FITS; bitpix is computed when not already set

Alex-Ian-Hamilton/sunpy,mjm159/sunpy,dpshelio/sunpy,dpshelio/sunpy,Alex-Ian-Hamilton/sunpy,dpshelio/sunpy,mjm159/sunpy,Alex-Ian-Hamilton/sunpy