Make the review page work both when invoked as /review/ and /review/<num>/

 - Legacy-Id: 493

Author: levkowetz

ietf/templates/utils/frame2.html

@@ -5,7 +5,7 @@
 <title>Comparison -- {{ info.old }} - {{ info.new }}</title>
 </head>
 <frameset rows="70, *">
-   <frame src="../top/{{ info.this }}">
+   <frame src="/review/top/{{ info.this }}">
    <frameset cols="50%, 50%">
       <frame name="old" src="{{ info.old }}">
       <frame name="new" src="{{ info.new }}">