The concluded groups also show RGs now, rename menu item.

Commit ready for merge.
 - Legacy-Id: 9861

Author: larseggert

ietf/templates/base/menu.html

@@ -30,7 +30,7 @@
 
   {% if flavor == "top" %}<li class="divider hidden-xs"></li>{% endif %}
   <li {%if flavor == "top" %}class="dropdown-header hidden-xs"{% else %}class="nav-header"{% endif %}>Other groups</li>
-  <li><a href="{% url "ietf.group.info.concluded_groups" %}">Concluded WGs</a></li>
+  <li><a href="{% url "ietf.group.info.concluded_groups" %}">Concluded groups</a></li>
   <li><a href="https://www.ietf.org/list/nonwg.html">Non-WG lists</a></li>
 
 {% if flavor == "top" %}</ul>{% endif %}