Update music (and add ogg)
Add skybox
Merge pull request #12 from ninjadev/skybox

Add skybox
Revert "Add skybox"
Merge pull request #13 from ninjadev/revert-12-skybox

Revert "Add skybox"
Set up DesertLayer.

Incorporates Skybox into desert, and thereby removes skybox issues.
Add dandelion seed