Fix Missile.randomInit

src/de/steamwar/misslewars/items/Missile.java

@@ -187,8 +187,7 @@ public class Missile extends SpecialItem {
 		File[] files = missileFolder.listFiles();
 		if (files == null) return;
 		if (files.length < Config.MissileCount) return;
-		List<File> pool = new ArrayList<>(files.length);
+		List<File> pool = new ArrayList<>(Arrays.asList(files));
-		pool.addAll(Arrays.asList(files));
 
 		for (int i = 0; i < Config.MissileCount; i++) {
 			File missileFile = pool.remove(r.nextInt(pool.size()));