Started with optimizations, in camera especially.

Shadowmap is mipmaped, shadows for all trees, 400 trees. pointlight
rendered with shadows in mind. Huge overhaul of the terrainScaling
system.
Added motion blur as post processing.
Added motion blur just to the sides of the screen
Added M key to enable/disable motionblur.
Changed parameters to make the world and the track larger. Increased speed of the car.