[Mangos-0.12] Fix Arena System

[mns]

hi

diff --git a/src/game/BattleGroundMgr.cpp b/src/game/BattleGroundMgr.cpp
index 5db8e52..a4c750c 100644
--- a/src/game/BattleGroundMgr.cpp
+++ b/src/game/BattleGroundMgr.cpp
@@ -1139,7 +1139,7 @@ void BattleGroundMgr::Update(uint32 diff)
        }
    }
    // if rating difference counts, maybe force-update queues
-    if(sWorld.getConfig(CONFIG_UINT32_ARENA_MAX_RATING_DIFFERENCE))
+    if(sWorld.getConfig(CONFIG_UINT32_ARENA_MAX_RATING_DIFFERENCE) && sWorld.getConfig(CONFIG_UINT32_ARENA_RATING_DISCARD_TIMER))
    {
        // it's time to force update
        if(m_NextRatingDiscardUpdate < diff)

Without this patch players enter to arena without checking rating if Arena.MaxRatingDifference > 0 and Arena.RatingDiscardTimer > 0 .

and this cause prevent spam update queue when players join in arena . Increase performance

have fun corrected arena .