Actually make old timelines show for non-logged-in like they should

Author: RedEnchilada

actions/conversation.php

@@ -125,7 +125,7 @@ function showContent()
     {
         $user = common_current_user();
 
-        if (!empty($user) && $user->conversationTree()) {
+        if (empty($user) || $user->conversationTree()) {
             $nl = new ConversationTree($this->notices, $this);
         } else {
             $nl = new FullThreadedNoticeList($this->notices, $this, $this->userProfile);

actions/public.php

@@ -92,7 +92,7 @@ function prepare($args)
 
         $user = common_current_user();
 
-        if (!empty($user) && $user->streamModeOnly()) {
+        if (empty($user) || $user->streamModeOnly()) {
             $stream = new PublicNoticeStream($this->userProfile, $this->images);
         } else {
             $stream = new ThreadingPublicNoticeStream($this->userProfile, $this->images);