Ken McClure:  Updating new files for terrain.
Fixed texture bugs, added new art to scene

Conflicts:
	index.vwf.yaml
Added placeholder for backdrop

Conflicts:
	index.vwf.yaml
Ken McClure: Updated model names, fixed lowercase uppercase issue, re-exported models out as scene.dae and backdrop.dae
Updated camera and grid rotations

Conflicts:
	source/scenario1.vwf.yaml

Conflicts:
	source/scenario1.vwf.yaml
Updated third person camera offset
Remove commented out debris
Merge pull request #114 from virtual-world-framework/scenarios-1-3-art

Scenarios 1 to 3 art