UFO Hunters 2.4.0

I have uploaded the 2.4.0 version of UFO Hunters with some changes based on received feedback from players.

• Made clear that the exit button of the camera menu closes the game.
• Allowed the player to look up at a higher angle.
• Rebinded Camera menu to Q to separate controls.
• Updated the main menu image.
• Changed UFO appearance rate.

Hope that makes the game more entertaining! :)