Alliance forum fixes part 1

Fixed the majority of security issues:

+Fixed a bug that permitted to edit, delete and create a forum in any
alliance, without any permissions
+Fixed a bug that permitted to edit, create and delete any kind of
thread, with any kind of permission
+Fixed a bug that permitted to edit, modify and delete every kind of
post, without any kind of permission
+Fixed a bug that din't permit to create posts and threads
+Fixed a bug that permitted to create forum and threads with empty
name/topic
+Fixed a bug that permitted to move a thread to an invalid forum
+Fixed a bug that permitted to create an invalid type of forum
+Fixed a bug that didn't permit to move forums, to the top and the
bottom of their forum type (in reality, it wasn't even coded)
+Added a sorting column for supporting the "move to top/bottom"
functionality
+Minor improvements and bug fixing/code indentation/removal of redundant
code

NOTE: For playing this version, you HAVE to add a new column to the table "s1_forum_cat", you can simply do that by running this query (where "s1_" is the prefix of your server): ALTER TABLE s1_forum_cat ADD `sorting` int(11) NOT NULL AFTER `id`

GameEngine/Lang/en.php

@@ -88,6 +88,7 @@ define("OFFERED_CONFED_TO","offered a confederation to");
 define("ALLY_TOO_MUCH_PACTS","Either You cannot offer more pacts of this kind or this alliance has reached the limit for this kind of patcs");
 define("ALLY_PERMISSIONS_UPDATED","Permissions updated");
 define("ALLY_FORUM_LINK_UPDATED", "Forum link updated");
+define("NO_FORUMS_YET","There are no forums yet.");
 define("ALLY_USER_KICKED"," has been kicked from the alliance");
 define("NOT_OPENED_YET","Server not started yet.");
 define("REGISTER_CLOSED","The register is closed. You can't register to this server.");