New plot(FLindex) and plot(FLIndices) methods. They will both plot the @index slot, faceted by age. In thr second case, indices will be standardized.
New plot(FLQuanPoint) and plot(FLQuantPoint, FLQuants) methods.
integer_breaks function useful for ages in the x axis.
geom_flpar allows ploting reference points and similar variables as horizontal lines.