Tried to add jumps to level, but not seeing them yet.
Put more truck update stuff into function.
Now drawing jumps, but need to change draw order so truck appears behing them.
Looking into making a container hold the level and the truck, and need to change the truck container index as the truck moves up and down and then the draw order will be correct http://www.createjs.com/Docs/EaselJS/classes/Container.html