added some graphics but only for debug

aliens.h

@@ -9,13 +9,12 @@ class Aliens : public QObject
 Q_OBJECT
 public:
 	explicit Aliens(Game_Data * gd, QObject *parent = 0);
-	void AddAlien(int srcId);
-	void nextWave();
+	void addAlien(int srcId);
 	void update();
 signals:
 
 public slots:
-	void DelAlien(int Id);
+	void delAlien(int Id);
 	void retrace(bool * OK);
 private:
 	Game_Data * gameData;