title: kendo datepicker change event doesn't refresh the month view
body: <p>I have a kendo date picker defined as follows: </p>
  
  <pre><code>&lt;input id="datePicker" data-format="dd.MM.yyyy" data-month='{ "content": "&amp;lt;span class=\"#= dateRange.hasReport(data.date) ? \"boldDate\" : \"normalDate\" #\"&amp;gt;#=data.value #&amp;lt;/span&amp;gt;" }' data-role="datepicker" data-bind="value: new Date(), events: {change: dateChanged}" style="width:150px;" /&gt;
  </code></pre>
  
  <p>In the month template, I bold some dates depending on whether there is a report or not for that date by a call to the method dateRange.hasReport(data.date)</p>
  
  <p>Now, there is an external event which causes the daterange to change. I want to now refresh the calender view so that the dateRange.hasReport is called for all dates again. </p>
  
  <p>I am unable to find a way to do this.</p>
  
  <p>Any ideas?</p>