Renamed class to not conflict with the java.lang version.

src/engine/devcmd/cmds/SetInvulCmd.java

@@ -10,8 +10,8 @@
 package engine.devcmd.cmds;
 
 
-import engine.Enum;
-import engine.Enum.ProtectionState;
+import engine.mbEnums;
+import engine.mbEnums.ProtectionState;
 import engine.devcmd.AbstractDevCmd;
 import engine.objects.AbstractGameObject;
 import engine.objects.Building;
@@ -59,7 +59,7 @@ public class SetInvulCmd extends AbstractDevCmd {
         // status of the entire city
 
         if ((b.getBlueprint() != null) &&
-                (b.getBlueprint().getBuildingGroup().equals(Enum.BuildingGroup.TOL))) {
+                (b.getBlueprint().getBuildingGroup().equals(mbEnums.BuildingGroup.TOL))) {
 
             City city;