Dirdir wiki engine updates, cleaned up some code, now one can save from preview page.

apps/dirdir/app.rc

@@ -5,10 +5,10 @@ fn dirdir_init {
 
 fn dirdir_controls {
     # Display 'Edit', 'History', etc, links
-    echo '<div><form action="/_apps/dirdir/edit" method="POST">'
+    echo '<form action="/_apps/dirdir/edit" method="POST">'
     echo '<input type="hidden" name="edit_wiki_page" value="'^$req_path^'" />'
     echo '<input type="submit" name="" value="Edit page" />'
-    echo '</form></div>'
+    echo '</form>'
 
 
 }