- new Comment class

- improved performances (much less duplicated mysql queries)
- less code and better error handling
- informs the whole thread when posting new comment
- fix various bugs

bugs.php

@@ -9,7 +9,7 @@
 include("path.php");
 require(BASE."include/incl.php");
 require(BASE."include/application.php");
-require(BASE."include/comments.php");
+require(BASE."include/comment.php");
 require(BASE."include/appdb.php");
 require(BASE."include/screenshot.php");
 require(BASE."include/category.php");