anchor.diff:  * [propertyname]#i18n.today# – Translation of the Today shortcut button text.
   * [propertyname]#i18n.cancel# – Translation of the Cancel button text.
   * [propertyname]#i18n.formatDate# – A function to format given [classname]#Date# object as [classname]#String#.
  +* [propertyname]#i18n.formatTitle# – A function to format the given monthName and year as a [classname]#String# representation to be placed over a calendar.
   
   Once set, the [propertyname]#i18n# property affects how months and dates are displayed in the [vaadinelement]#vaadin-date-picker# dropdown as well as the language of the buttons in the element.
   
  
positive.code:   cancel: 'Peruuta',
    formatDate: function(d) {
      return moment(d).format(moment.localeData().longDateFormat('L'));
    }
  };
  ----
  
negative.code:   weekdaysShort: ['su','ma','ti','ke','to','pe','la'],
    formatDate: function(d) {
      return [d.getDate(), d.getMonth() + 1, d.getFullYear()].join('.');
    },
    formatTitle: function(monthName, fullYear) {
      return monthName + ' ' + fullYear;
    }
  }
  ----
  