wrong calculation of DateLastMilliOfWeek

[dittodhole]

  _dateLastMilliOfWeek : function(date) {
     var lastDayOfWeek = this._dateLastDayOfWeek(date);
     return new Date(lastDayOfWeek.getTime() + (MILLIS_IN_DAY));

  }

this is wrong:
if we have eg. sunday 00:00 and we want to get monday 00:00, adding 24 hours to sunday 00:00 ain't monday 00:00...

fix:

  _dateLastMilliOfWeek : function(date) {
     var lastDayOfWeek = this._dateLastDayOfWeek(date);
     lastDayOfWeek.setDate(lastDayOfWeek.getDate() + 1);
     return lastDayOfWeek;
  }