renaming "noauthentication" to "cannotAuthenticate"

browserid/static/dialog/controllers/authenticate_controller.js

@@ -102,7 +102,7 @@
         if (authenticated) {
           self.close("authenticate:authenticated");
         } else {
-          self.find("#nosuchaccount").hide().fadeIn(400);
+          self.find("#cannotAuthenticate").hide().fadeIn(400);
         }
       }, self.getErrorDialog(BrowserIDErrors.authentication));
     }

browserid/static/dialog/style.css

@@ -180,7 +180,7 @@ div.content > div.summary {
     padding: 0 .4em 0 .4em;
 }
 
-#createContainer, #passwordContainer, #nosuchaccount {
+#createContainer, #passwordContainer, #cannotAuthenticate {
   display: none;
 }
 

browserid/static/dialog/views/authenticate.ejs

@@ -22,7 +22,7 @@
       <a href="#" id="authenticate">Sign In</a>
     </div>
 
-    <div id="nosuchaccount">
+    <div id="cannotAuthenticate">
       The account cannot be logged in with this username and password.
     </div>