Removed custom exception candy

src/engine/gameManager/ZoneManager.java

@@ -8,12 +8,12 @@
 
 package engine.gameManager;
 
-import engine.mbEnums;
 import engine.InterestManagement.Terrain;
 import engine.math.Bounds;
 import engine.math.Vector2f;
 import engine.math.Vector3f;
 import engine.math.Vector3fImmutable;
+import engine.mbEnums;
 import engine.objects.Building;
 import engine.objects.City;
 import engine.objects.Zone;