Fix some markup issues

* Remove spurious search div
* Fix nested uls
* Use class name selected, not closed (the inverse)
* Restor nacl div

js/views/conversation_list_view.js

@@ -15,9 +15,9 @@ var Whisper = Whisper || {};
 
     select: function(e) {
       var target = $(e.target).closest('.conversation');
-      if (target.hasClass('closed')) {
-        target.siblings().addClass('closed');
-        target.removeClass('closed').addClass('selected');
+      if (!target.is('.selected')) {
+        target.siblings().removeClass('slected');
+        target.addClass('selected');
       }
       return false;
     },