old_contents: import CalendarMonth from "ember-date-picker/components/calendar-month";
  import moment from "moment";
  
  moment.locale('en', {
    weekdaysMin : "S_M_T_W_R_F_S".split("_")
  });
  
  export default CalendarMonth;
  
new_contents: import CalendarMonth from "ember-date-picker/components/calendar-month";
  export default CalendarMonth;
  
subject: remove customizations from moment