title: Prime Faces 3.3.1 Today button Disabled
body: <p>I have the calendar widget in my xhtml:</p>
  
  <pre><code>&lt;p:calendar pattern="MM/dd/yyyy" navigator="true" id="endDate" for="endDate" readonlyInput="true"
                          mindate="#{manageMarketingProgramsBean.currentDate}" showOn="button" showButtonPanel="true"&gt;
                          &lt;f:convertDateTime pattern="MM/dd/yyyy" timeZone="America/New_York" /&gt;
                      &lt;/p:calendar&gt;
  </code></pre>
  
  <p>The "Today" and "Done" button shows up but the Today button is disabled, could you please let me know what could be issue?</p>
  
  <p>Prime Faces Calendar:</p>
  
  <p><img src="https://i.stack.imgur.com/0A0SD.png" alt="enter image description here"></p>