Blender Git Loki

Changed the HairKey location rna prop to give a location in object space,
rather than in its own internally used emitting-face-coordinate-system
(which is how the data is stored in DNA - that data now exists in rna as
hairkey.location_hairspace)

Basically this makes the hair information that's in rna a lot more useful,
making it possible to export hair strands to external renderers for example.