Make Vec3HF an actual class and move de_homogenize to it. Also remove Vec4-to-Vec3 cast operator (since it may not be obvious what it does)
Make Vec3Hf more explicit
Remove additional Vec4 contructors for homogenious coords
Update Xcode project
Add disclaimer header
Remove Vec3Hf class, but reintroduce ArithVec4Float.de_homogenize()
Fix remaining compile issues
Merge pull request #5 from mortennobel/master

Remove Vec3Hf class, but keep ArithVec4Float.de_homogenize()