fixed: Changeling permanents did not have all creature types

src/magic/model/MagicPermanent.java

@@ -401,6 +401,9 @@ public class MagicPermanent implements MagicSource,MagicTarget,Comparable<MagicP
     }
 
     public boolean hasSubType(final MagicSubType subType) {
+        if (subType.isCreatureType() && hasAbility(MagicAbility.Changeling)) {
+            return true;
+        }
         return subType.hasSubType(getSubTypeFlags());
     }
 

src/magic/test/TestChangeling.java

@@ -0,0 +1,43 @@
+package magic.test;
+
+import magic.model.MagicGame;
+import magic.model.MagicPlayer;
+import magic.model.MagicPlayerDefinition;
+import magic.model.MagicPlayerProfile;
+import magic.model.MagicDuel;
+import magic.model.phase.MagicMainPhase;
+
+class TestChangeling extends TestGameBuilder {    
+    public MagicGame getGame() {
+		final MagicDuel duel=new MagicDuel();
+		duel.setDifficulty(6);
+		
+		final MagicPlayerProfile profile=new MagicPlayerProfile("bgruw");
+		final MagicPlayerDefinition player1=new MagicPlayerDefinition("Player",false,profile,15);
+		final MagicPlayerDefinition player2=new MagicPlayerDefinition("Computer",true,profile,14);
+		duel.setPlayers(new MagicPlayerDefinition[]{player1,player2});
+		duel.setStartPlayer(0);
+		
+		final MagicGame game=duel.nextGame(true);
+		game.setPhase(MagicMainPhase.getFirstInstance());
+		final MagicPlayer player=game.getPlayer(0);
+		final MagicPlayer opponent=game.getPlayer(1);
+
+        MagicPlayer P = player;
+
+        P.setLife(20);
+        addToLibrary(P, "Plains", 10);
+		createPermanent(game,P,"Rupture Spire",false,8);
+		createPermanent(game,P,"Avian Changeling",false,1);
+		createPermanent(game,P,"Heavy Mattock",false,1);
+
+        P = opponent;
+		
+        P.setLife(20);
+        addToLibrary(P, "Plains", 10);
+		createPermanent(game,P,"Rupture Spire",false,8);
+		createPermanent(game,P,"Serra Angel",false,1);
+		
+		return game;
+    }
+}