more api measure type

[papo-o]

can you update class WithingsMeasureGroup(object)
with ('muscle_mass', 76), ('hydration', 77), ('bone_mass', 88),('pulse_wave_velocity', 91) ?

class WithingsMeasureGroup(object):
 MEASURE_TYPES = (('weight', 1), ('height', 4), ('fat_free_mass', 5),
 ('fat_ratio', 6), ('fat_mass_weight', 8),
 ('diastolic_blood_pressure', 9), ('systolic_blood_pressure', 10),
 ('heart_pulse', 11), ('muscle_mass', 76), ('hydration', 77),
 ('bone_mass', 88),('pulse_wave_velocity', 91))