Method made static and moved to manager.

src/engine/workthreads/HourlyJobThread.java

@@ -176,7 +176,7 @@ public class HourlyJobThread implements Runnable {
         MineRecord mineRecord = MineRecord.borrow(mine, mine.lastClaimer, Enum.RecordEventType.CAPTURE);
         DataWarehouse.pushToWarehouse(mineRecord);
 
-        mineBuilding.setRank(mineBuilding.getRank());
+        BuildingManager.setRank(mineBuilding, mineBuilding.getRank());
         mine.lastClaimer = null;
         mine.setActive(false);
         mine.wasClaimed = true;