fix navbar links for changed name apps

roomlist/templates/layouts/navbar.html

@@ -15,7 +15,7 @@
         </li>
         <li><a href="/#about">About</a>
         </li>
-        <li><a href="/buildings">Buildings</a>
+        <li><a href="/housing/buildings">Buildings</a>
         </li>
       </ul>
       <ul class="nav navbar-nav navbar-right">