[Bf-python] Redraw Scene scriptlink

[joeedh]

Willian Padovani Germano wrote:

> Hi,
>
> It's on my todo, a few days ago I looked for a place to add it, 
> functions like set_scene and specially set_scene_bg, from what I 
> remember.  I should investigate better / test / commit this weekend, 
> then please test too to see if the chosen place is really a proper one.

YAY!! Now true per-object interactive python scripts are now practible!  
One of the last large hurdles that limit's the versatiliy of scripts 
will be gone!!!

joeedh