Implement some opcodes. Big thx to TOM_RUS.

--HG--
branch : trunk

src/game/ItemHandler.cpp

@@ -854,17 +854,30 @@ void WorldSession::HandleBuyBankSlotOpcode(WorldPacket& recvPacket)
 
     BankBagSlotPricesEntry const* slotEntry = sBankBagSlotPricesStore.LookupEntry(slot);
 
+    WorldPacket data(SMSG_BUY_BANK_SLOT_RESULT, 4);	
+
     if (!slotEntry)
+    {
+        data << uint32(ERR_BANKSLOT_FAILED_TOO_MANY);	
+        SendPacket(&data);
         return;
+    }
 
     uint32 price = slotEntry->price;
 
     if (_player->GetMoney() < price)
+    {
+        data << uint32(ERR_BANKSLOT_INSUFFICIENT_FUNDS);	
+        SendPacket(&data);
         return;
+    }
 
     _player->SetBankBagSlotCount(slot);
     _player->ModifyMoney(-int32(price));
 
+     data << uint32(ERR_BANKSLOT_OK);
+     SendPacket(&data);	
+
     _player->GetAchievementMgr().UpdateAchievementCriteria(ACHIEVEMENT_CRITERIA_TYPE_BUY_BANK_SLOT);
 }