add loader

add schema
new loader model using xml
separated work and load data
validation using schema
map data in xml
new core model... proecting

aliens.h

@@ -14,13 +14,11 @@ public:
 	void AddAlien(int srcId);
 	void nextWave();
 	void update();
-	int AlienIndex(int alienId);
 	int size() const {return gameData->curAliens.size();}
 signals:
 
 public slots:
-	void DelAlienById(int Id);
-	void DelAlien(int index);
+	void DelAlien(int Id);
 	void retrace(bool * OK);
 private:
 	Game_Data * gameData;