NF, BF, OPT: Saving all 15 elements of the kurtosis tensor; ordinary linear least square fitting is already working; a bug when mask is not given was fixed on ordinary linear least square fitting function; and improve performance of the lop over all voxels
NF, BF, OPT: Saving all 15 elements of the kurtosis tensor; ordinary linear least square fitting is already working; a bug when mask is not given was fixed on ordinary linear least square fitting function; and improve performance of the lop over all voxels

demianw/dipy,matthieudumont/dipy,matthieudumont/dipy,villalonreina/dipy,FrancoisRheaultUS/dipy,FrancoisRheaultUS/dipy,JohnGriffiths/dipy,StongeEtienne/dipy,nilgoyyou/dipy,JohnGriffiths/dipy,oesteban/dipy,demianw/dipy,sinkpoint/dipy,sinkpoint/dipy,jyeatman/dipy,StongeEtienne/dipy,jyeatman/dipy,oesteban/dipy,nilgoyyou/dipy,villalonreina/dipy