GEAR : CHIMIE : a new flag DCHIMIE_ELTS_WEIGHTING is added, which allows to choose the kind of ejected element weighting. The convention is:

CHIMIE_ELTS_WEIGHTING == 0 mass + kernel weighting (default, Revaz & Jablonka 2012)
CHIMIE_ELTS_WEIGHTING == 1 volume + kernel weighting
CHIMIE_ELTS_WEIGHTING == 2 number + kernel weighting
CHIMIE_ELTS_WEIGHTING == 3 mass weighting
CHIMIE_ELTS_WEIGHTING == 4 volume weighting
CHIMIE_ELTS_WEIGHTING == 5 number weighting