Use local wdn includes if available

www/index.php

@@ -36,6 +36,11 @@ if (UNL_Search::$mode === 'debug') {
     $page->addScript('js/search.min.js');
 }
 
+$wdn_include_path = UNL_Search::getProjectRoot() . '/www';
+if (file_exists($wdn_include_path . '/wdn/templates_4.1')) {
+    $page->setLocalIncludePath($wdn_include_path);
+}
+
 if (!$isEmbed) {
     $page->doctitle = '<title>Search | University of Nebraska&ndash;Lincoln</title>';
     $page->pagetitle = '';