Error on export if using "Pose animation"

What steps will reproduce the problem?
1. Create a model, an armature and parent the model to the armature (modifier)
2. Pose the model
3. Export to xmodel_export and enable "Pose animation"

What is the expected output? What do you see instead?
Export script should use the PoseBones and export their pose, but an error 
occurs:

    b_tail = a_matrix * bone.tail_local
AttributeError: 'PoseBone' object has no attribute 'tail_local'

Please use labels and text to provide additional information.

The bone coordinate calculation was changed from bone.tail to tail_local to 
generate correct tail positions. But the calculation has to be different for 
PoseBones, as they don't have a "tail_local" coord (bone.tail_local == 
posebone.tail ??)

Original issue reported on code.google.com by codem...@gmx.de on 24 Nov 2011 at 9:08

CoDEmanX / blender-cod

Error on export if using "Pose animation" #2