Node class: get and set world transform

This is not a major issue… just a small comment on the node class.

It has a method

[code]const Matrix3x4 & GetWorldTransform () const ;


but there is no corresponding SetWorldTransform() method that takes a Matrix3x4 (or any matrix) as the parameter. This is based on the current git source.
For the sake of consistency, should there be such a set method?