Hotfix Missile

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

@@ -150,6 +150,7 @@ public class Missile extends SpecialItem {
 		if (!missileFolder.exists() || !missileFolder.canRead() || !missileFolder.isDirectory()) throw new SecurityException("Missiles could not be loaded");
 		for (File missileFile : Objects.requireNonNull(missileFolder.listFiles())) {
 			if (!missileFile.canRead() || !missileFile.isFile()) continue;
+			if (!missileFile.getName().endsWith(".schem")) continue;
 			new Missile(missileFile);
 		}
 	}