some comments mostly, switching to another machine
Merge branch 'master' of https://github.com/ben-horner/csg.git

Conflicts:
	src/main/scala/horner/ben/csg/LinearBound.scala
	src/main/scala/horner/ben/csg/PlanarBound.scala
	src/main/scala/horner/ben/csg/Primitive.scala
	src/main/scala/horner/ben/csg/Solid.scala