Core/Scripts/SmartAI: removed test code

Core/CreatureTextMgr: added reload command
handle text from DB
handle grouped texts
handle repeatable/single texts based on probability
todo: sound/emote, code cleanup

--HG--
branch : trunk

sql/updates/10076_world_command.sql

@@ -0,0 +1,3 @@
+DELETE FROM `command` WHERE `name` LIKE 'reload creature_text';
+INSERT INTO `command` (`name`,`security`,`help`) VALUES
+('reload creature_text',3,'Syntax: .reload creature_text\r\nReload creature_text table.');