Add a class the filters out "unofficial" building markers.

Use that class to render the directory endpoint.

src/UNL/TourMap.php

@@ -15,7 +15,7 @@ class UNL_TourMap
                              'innovation'          => 'UNL_TourMap_GoogleMap_Innovation',
 
                              // MARKER LISTS
-                             'directory'           => 'UNL_TourMap_MarkerList_Buildings',
+                             'directory'           => 'UNL_TourMap_MarkerList_Buildings_Official',
                              'buildings'           => 'UNL_TourMap_MarkerList_Buildings',
                              'citybuildingmarkers' => 'UNL_TourMap_MarkerList_Buildings_CityCampus',
                              'eastbuildingmarkers' => 'UNL_TourMap_MarkerList_Buildings_EastCampus',

src/UNL/TourMap/MarkerList/Buildings/Official.php

+<?php
+class UNL_TourMap_MarkerList_Buildings_Official extends UNL_TourMap_MarkerList_Buildings
+{
+    public $title = 'Official Buildings';
+    
+    public function accept()
+    {
+        if (!parent::accept()) {
+            return false;
+        }
+        
+        $info = FilterIterator::current();
+        
+        if (!$info['is_official']) {
+            return false;
+        }
+        
+        return true;
+    }
+}

www/templates/html/UNL/TourMap/MarkerList/Buildings.tpl.php → www/templates/html/UNL/TourMap/MarkerList/Buildings/Official.tpl.php

-<section class="wdn-band"><div class="wdn-inner-wrapper wdn-inner-padding-none" id="pointlist">
-    <h1>All Buildings</h1>
+<section class="wdn-band">
+<div class="wdn-inner-wrapper" id="pointlist">
+    <h1 class="clear-top wdn-center">All Buildings</h1>
     
     <p>This list contains the official list of buildings and abbreviations. The building code/abbreviation is used
     in class schedules as well as the <a href="http://directory.unl.edu/">online directory</a>. Click a building name to view
     its location on the campus maps.</p>
     
     <?php echo $savvy->render($context, 'UNL/TourMap/MarkerList.tpl.php') ?>
-</div></section>
+</div>
+</section>