Star Parallax is working, along with some optimizations for Stars
Merge branch 'Planets' into Starallax
Merge branch 'Starallax' into Joon
Framework for more planets is ready
There are now two planets. Their positions and attributes can be tweaked in entityManager.js in the _generateTerrain function
Merge remote-tracking branch 'origin/Joon' into Planets

Conflicts:
	game/entityManager.js