Added COPYING note to each test file
diff --git a/js/testing/test-signature-string.html b/js/testing/test-signature-string.html
index 26a1931..025d065 100644
--- a/js/testing/test-signature-string.html
+++ b/js/testing/test-signature-string.html
@@ -1,6 +1,9 @@
<?xml version = "1.0" encoding="utf-8" ?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
"DTD/xhtml1-strict.dtd">
+<!--
+ See COPYING for copyright and distribution information.
+-->
<html xmlns = "http://www.w3.org/1999/xhtml">
<head>