Merge pull request #11095 from gerripeach/pull_request3

Core/LFG: Minimum item level in Wotlk heroic dungeons

sql/updates/world/2014_01_21_world_access_requirement.sql

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+-- Add new collum in the access_requirement table.
+ALTER TABLE `access_requirement`  ADD COLUMN `item_level` SMALLINT(5) UNSIGNED NOT NULL DEFAULT '0' AFTER `level_max`;
+
+-- All WotLK Heroics require at least an average item level of 180.
+UPDATE `access_requirement` SET `item_level`=180 WHERE `mapId` IN (574, 575, 576, 578, 595, 599, 600, 601, 602, 604, 608, 619) AND `difficulty`=1;
+-- Trial of the Champion, Pit of Saron, and the Forge of Souls require an average item level of 200.
+UPDATE `access_requirement` SET `item_level`=200 WHERE `mapId` IN (632, 650, 658);
+-- Halls of Reflection requires an average item level of 219.
+UPDATE `access_requirement` SET `item_level`=219 WHERE `mapId`=668;