Tutorials - Menu Overhaul & bug fixes

I turned the first level into a interactive tutorial, since it was not so clear how to play the game(and nobody likes to read instructions).

Menu improvements include: 

• SFX
• Options menu
• Main screen logo

Bug fixes:  

• You cannot draw roads over the car or terrain
• Camera bug at car restart
• Wheels cannot get stuck intor the road anymore

Now you can also download windows version of the game.