title: Zend Framework: headTitle()->append() issue
body: <p>Has anyone run into this problem...</p>
  
  <p>In my layout.phtml I have:</p>
  
  <pre><code>&lt;head&gt;
      &lt;?= $this-&gt;headTitle('Control Application - ') ?&gt;
  &lt;/head&gt;
  </code></pre>
  
  <p>then in index.phtml I have:</p>
  
  <pre><code>&lt;? $this-&gt;headTitle()-&gt;append('Client List'); ?&gt;
  </code></pre>
  
  <p>I expect that, when I go to my index action, the title should be 'Control Application - Client List' but instead I have 'Client ListControl Application - '</p>
  
  <p>What is going on? How can I fix this?</p>