title: rich:datatable -- zebra striping with rowClasses attribute does not work!
body: <p>I am trying to style a table with "zebra" coloured rows, however, for some reason, the rowClasses attribute does not seem to work (edit: I see no colours at all applied to the table).</p>
  
  <p>I defined the style as follows:</p>
  
  <pre><code>&lt;style&gt;
  .even-row {
     background-colour: #fcefa1;
  }
  .odd-row {
     background-colour: #f7f7f7;
  }
  &lt;/style&gt;
  </code></pre>
  
  <p>And the dataTable itself looks like this:</p>
  
  <pre><code>&lt;rich:dataTable value="#{bean.labels}" var="label" rowClasses="even-row, odd-row"&gt;  
      &lt;rich:column&gt;
          &lt;h:outputText value="#{label}"/&gt; 
      &lt;/rich:column&gt;
  &lt;/rich:dataTable&gt;
  </code></pre>
  
  <p>Any idea as to why this might not be working? (Perhaps I misunderstand what the rowClasses attribute's role is)</p>