0.1-5   Modified HBmethod according to a note from Hidiroglou and Emond (2018)
	slight modification in dataframe returned by ratioSize when return.data=TRUE: the column  "size"  now is named 'sizeU' (for coherence with HBmethod)
        Added function plot4sizes to plot output of HBmethod or ratioSize
	
0.1-4 	Corrected a bug in LocScaleB when computing score.
	In LocScaleB added possibility of estimating scale by means of Inter-Decile Range (method="IDR") or based on Gini's meadn differrence