title: add title to datepicker holiday array
body: <p>Is there a way to add custom <code>titles</code> to the array so that each <code>holiday</code> has it's own <code>title</code> instead of the generalized <code>Date Unavailable</code>?</p>
  
  <pre><code>var days = ["Sunday","Monday","Tuesday","Wednesday","Thursday","Friday","Saturday","Sunday"];
  var unavailableDates = ["2012/11/12","2012/11/22","2012/12/25","2013/01/01","2013/01/21","2013/02/18","2013/05/27","2013/04/04","2013/09/02","2013/10/14","2013/11/11","2013/11/28","2013/12/25"]; // yyyy/MM/dd 
  var unavailableDays = ["Saturday","Sunday"];
  
  function unavailable(date) {
  ymd = date.getFullYear() + "/" + ("0"+(date.getMonth()+1)).slice(-2) + "/" + ("0"+date.getDate()).slice(-2);
  day = new Date(ymd).getDay();
  if ($.inArray(ymd, unavailableDates) &lt; 0 &amp;&amp; $.inArray(days[day], unavailableDays) &lt; 0) {
     return [true, "enabled", "Select Date"];
   } else {
        return [false,"disabled","Date Unavailable"];
   }
  }
  $('#transfer-date').datepicker({beforeShowDay:unavailable, showOn: 'button', buttonImage: '../../images/icon-calendar.png', buttonImageOnly: true,});
  </code></pre>