now "flying" Stargates destroy Replicators, and belonging bugfix

Game.playerBaseDestroyed() is not called everythime a PlayerBase is
destroyed.

cicaprojekt/Wall.java

@@ -36,6 +36,7 @@ public class Wall extends Tile {
     }
 
     public void onEntry(PlayerBase playerBase) {
+        super.onEntry(playerBase);
         if (sg == null) {
             return;
         } else {