Change all ucla-cs authored files to refer to COPYING.
diff --git a/js/Key.js b/js/Key.js
index d495fe3..072194b 100644
--- a/js/Key.js
+++ b/js/Key.js
@@ -1,5 +1,6 @@
 /*
  * @author: ucla-cs
+ * See COPYING for copyright and distribution information.
  * This class represents Key Objects
  */