Added more topic variables to article template files

This allows us to build our own topic link in the article with an image instead of using the prebuilt ones like story_anchortag_and_image_no_align which are missing width and height attributes.

system/lib-article.php

@@ -205,7 +205,11 @@ function STORY_renderArticle($story, $index = '', $storyTpl = 'articletext.thtml
                 )
                 , false, true
             );
-            $article->set_var('story_topic_image', $topicimage, false, true);
+
+			$article->set_var('story_topic_name', $topicname, false, true);
+			$article->set_var('story_topic_url', $topicurl, false, true);
+            $article->set_var('story_topic_image', $imageurl, false, true);			
+
             $topicimage_noalign = '<img src="' . $imageurl . '" alt="'
                 . $topicname . '" title="' . $topicname . '"' . XHTML . '>';
             $article->set_var('story_anchortag_and_image_no_align',