display only active shows of a host.

program/templates/host_detail.html

@@ -9,8 +9,8 @@
 
     <div id="shows">
         <div id="shows-title">Sendungen</div>
-        {% for show in host.shows.all %}
-            <div class="show {{ show.broadcastformat.slug }}">{{ show }}</div>
+        {% for show in host.active_shows %}
+            <div class="show {{ show.broadcastformat.slug }}"><a href="{% url "show-detail" show.slug %}"> {{ show.name }}</a></div>
         {% endfor %}
     </div>