Merge pull request #64 from Slimliner/master

Fixed so the cart is a prefab that can be added easily
Playing around with some terrain and lighting
Merge pull request #68 from lightsoda/master

#67: Test scene for in-game aesthetics
bush and pine tree models

bush, pine tree, and the related textures
Merge pull request #69 from fatmandu/master

bush and pine tree models