[Bf-python] Bone Information Question

[kp991533]

I am trying to make an exporter like everyone else. I thought I know what a 
bones' head, tail and roll where. But I dont.

I need to find the origin of rotation for the bones and the rotaion. I am 
assuming that the quat I get from a bone it relative to the origin that I cant 
find.

Any light on this would be great.

Thanx in advance.
I love Blender

~Kevin