* Fix to make python panels callbacks get the actual blender Panel as an argument, instead of any instance. * Fix for callback validation in python 2.5, worked OK in python 3.0 but gave error in 2.5 because it's a method instead of a function there.
* Fix to make python panels callbacks get the actual blender Panel as an argument, instead of any instance. * Fix for callback validation in python 2.5, worked OK in python 3.0 but gave error in 2.5 because it's a method instead of a function there.