* Fix reload tickets from database

* Fix crash /exploit issue with improper pasing when '%' is in ticket message
* Remove obsolete recv_data from tickets
* Allow closing of a ticket inserting the guid of the GM or player that closed it into the database.
* Allow assigning tickets to offline GMs.
* Tighten up SQL escape strings, increased security against SQL injections
* Fix issue where multiple tickets could have the same entry
* --- by Machiavelli ---

--HG--
branch : trunk

sql/updates/780_characters.sql

@@ -0,0 +1,2 @@
+ALTER TABLE `gm_tickets` CHANGE `guid` `guid` int(10) NOT NULL AUTO_INCREMENT;
+ALTER TABLE `gm_tickets` CHANGE `closed` `closed` int(10) NOT NULL;