Namespaces: added feature to show folder structure

Namespaces are an important feature to have a hierarchic structure for the wiki.
A new site was added that can display and navigate the folder structure.

src/templates/search.html

@@ -9,7 +9,7 @@
         </form>
         <div class="content">
             {% autoescape off %}
-	    <span>{{ content }}</span>
+	    {{ content }}
             {% endautoescape %}
         </div>
     </div>