Added class description comment to MZDateFormatter.h
Added class description comment to MZDateFormatter.h

griff/metaz,griff/metaz,grmartin/neometaz,griff/metaz,grmartin/neometaz,liweichen0817/metaz,grmartin/neometaz,griff/metaz,grmartin/neometaz,liweichen0817/metaz,griff/metaz,liweichen0817/metaz,liweichen0817/metaz,grmartin/neometaz