Added a small and simple test EI.java. and fixed some buggs

src/ei/game/EI.java

@@ -1,5 +1,20 @@
 package ei.game;
 
-public class EI {
+import ei.engine.LWJGLGameWindow;
+import ei.engine.state.GameStateManager;
+import ei.game.gamestate.InGameState;
 
+public class EI extends LWJGLGameWindow{
+	public static void main(String[] args){
+		new EI();
+	}
+
+	public EI() {
+		super("EI");
+	}
+	
+	protected void init(){
+		GameStateManager.getInstance().addState(new InGameState("InGameState"));
+		GameStateManager.getInstance().setActive("InGameState");
+	}
 }