Parse relation snippets

Change-Id: I41d7c091a95f7478126cfd56bbd9dba179797c9a
diff --git a/dev/js/src/match/treeitem.js b/dev/js/src/match/treeitem.js
index 9ddb1fe..c284de3 100644
--- a/dev/js/src/match/treeitem.js
+++ b/dev/js/src/match/treeitem.js
@@ -1,4 +1,6 @@
 define(['menu/item'], function (itemClass) {
+  "use strict";
+
   /**
    * Menu item for tree view choice.
    */