title: Django CMS app-hook - how to set title?
body: <p>I have app-hook for my Django CMS 3.0.3 and looking for right solution to set meta title to my app-hook pages.</p>
  
  <p>Now I'm doing it like so: in my base template:</p>
  
  <pre><code>{% load cms_tags sekizai_tags menu_tags staticfiles %}
  &lt;html&gt;
  &lt;head&gt;
      {% block head %}
          &lt;title&gt;{% page_attribute 'page_title' %}&lt;/title&gt;
          &lt;meta name="description" content="{% page_attribute 'meta_description' %}"&gt;
      {% endblock head %}
      ...
  </code></pre>
  
  <p>In my app-hook templates I overrided this <code>block head</code> like so:</p>
  
  <pre><code>{% block head %}
      &lt;title&gt;{{ title }}&lt;/title&gt;
  {% endblock head %}
  </code></pre>
  
  <p>Is it a right solution? Maybe I should somehow change attribute <code>page_title</code> in my app-hook's views?</p>