Use of Instant to track hotzone refresh times.

src/engine/workthreads/HourlyJobThread.java

@@ -41,17 +41,17 @@ public class HourlyJobThread implements Runnable {
 
         try {
 
-            //no hotzone? set one.
-
             if (ZoneManager.hotZone == null)
                 ZoneManager.generateAndSetRandomHotzone();
 
+            // Use the same hotZone this hour up and until
+            // the HotZone_Duration from the ConfigManager
+
             ZoneManager.hotZoneCycle = ZoneManager.hotZoneCycle + 1;
 
-            if (ZoneManager.hotZoneCycle > Integer.valueOf(ConfigManager.MB_HOTZONE_DURATION.getValue()))
+            if (ZoneManager.hotZoneCycle > Integer.parseInt(ConfigManager.MB_HOTZONE_DURATION.getValue()))
                 ZoneManager.generateAndSetRandomHotzone();
 
-
             if (ZoneManager.hotZone == null) {
                 Logger.error("Null HotZone returned from ZoneManager");
             } else {
@@ -91,7 +91,6 @@ public class HourlyJobThread implements Runnable {
             }
         }
 
-
         // Mines can only be claimed once per cycle.
         // This will reset at 1am after the last mine
         // window closes.