Added / Changed
- Update game with latest game engine update
- Increased star's gold bonus but decreased chance to spawn
- Updated central animation to create a fade that 'breath' with the screen
- Added explosion / firework like effect when gold bonus is clicked
- Added explosion / firework like effect when level up ( not building or upgrading robots )

Fixed
- Game engine won't crash anymore if screen size is not available, minimal resolution is set to 800x600
    If the resolution is too large, it will be set to screen resolution and fullscreen.