Give white mages priority in healer queue.

[Vlady]

With the huge influx of scholars right now the white mage population is dwindling a tad bit considering 8 out of 10 of my 8 man groups are always double scholar which is painful to heal heroic Garuda and ifrit. Either give white mages a priority over scholars to counter the imbalance or remove the toe stepping shield problem associated with multiple scholars by weakening our shields by 50% so we can stack them a bit better.