Terminology: "credential" instead of "secret token"

media/booth/templates/election.html

@@ -6,7 +6,7 @@
 <p>
     
 <ol>
-    <li> <b>Enter</b> your secret token.</li><br />
+    <li> <b>Enter</b> your credential.</li><br />
 
     <li> <b>Select</b> your options.<br />
 <span style="font-size: 14pt;">Answer the questions, and review your choices.</span></li>

media/booth/vote.html

@@ -558,7 +558,7 @@ BOOTH.do_done = function() {
 
 BOOTH.ask_token = function () {
     try {
-        var token = window.prompt("Please enter your secret token:");
+        var token = window.prompt("Please enter your credential:");
         BOOTH.credential = BOOTH.derive_key(token);
         BOOTH.voter_id = BOOTH.credential.y.toString();
         BOOTH.show_question(0);