A(Fe) is now correctly passed even alongside FeH. In that case FeH is used for choice of model atmosphere and abundance scaling, and A(Fe) for the absolute abundance of Fe
Only saves .csv file with spectra that finish computing
Saves .csv before computing spectra in case it crashes - at least some kind of parameters are saved
Saves used vmic if no vmic is passed
Specifies which element was NLTE or LTE in the header