show a link to the admin site in the top-nav dropdown for superusers

Author: christianp

editor/templates/top-nav.html

@@ -85,6 +85,9 @@
                 <li><a href="{% url 'profile_projects' user.pk %}"><span class="glyphicon glyphicon-briefcase"></span> Projects</a></li>
                 <li role="separator" class="divider"></li>
                 <li><a href="{% url 'edit_profile' %}"><span class="glyphicon glyphicon-cog"></span> Settings</a></li>
+                {% if request.user.is_superuser %}
+                <li><a href="{% url 'admin:index' %}"><span class="glyphicon glyphicon-tower"></span> Admin</a></li>
+                {% endif %}
                 <li role="separator" class="divider"></li>
                 {% if CAN_LOGOUT %}
                 <li>