and tiny other things e.g.
fix: sum of weights sometimes reaches only 99% instead of 100%
mod: come # comments - year to 2013
mod: ui of importer - joint size bit closer to other item
during export for applying transform.
that will calculate parented object correctly.
related to issue reported by Shadoh.
http://www.blender.org/forum/viewtopic.php?t=26251