title: PrimeFaces components don't appear in browser
body: <p>I'm using JSF 2.2 in my Project (Tomcat 7.42, Mojarra 2.2.1), and i want to use <code>p:calendar</code> from PrimeFaces library. I have included primefaces-4.0.jar into my Project Libraries, and add  <code>xmlns:p="http://primefaces.org/ui"</code> namespace, and everything looks ok. Here is my code:</p>
  
  <pre><code>&lt;?xml version="1.0" encoding="UTF-8"?&gt;
  &lt;!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" 
  "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"&gt;
  &lt;html   xmlns="http://www.w3.org/1999/xhtml"
      xmlns:h="http://java.sun.com/jsf/html"
      xmlns:ui="http://java.sun.com/jsf/facelets"
      xmlns:p="http://primefaces.org/ui"&gt;
  
  &lt;h:body&gt;
      &lt;p:calendar value="#{calendarBean.date2}" id="popupCal" /&gt;  
  &lt;/h:body&gt;
  &lt;/html&gt;
  </code></pre>
  
  <p>But, in browser, calendar doesn't appear. Standard <code>h:</code> components work great, but from PrimeFaces - nothing works. </p>
  
  <p>I know that PF 4.0 should support JSF 2.2, but i have some issue. 
  I appreciate any help?</p>