[Bf-python] MapTo Values

[Yehoshua Sapir]

Thomas Buschhardt wrote:

> Hallo I write a import-script for models in a spacegame and I try to 
> change some Textures-Mapto values like NOR or Blending Mode, but I 
> dont see such things in the API. Also to change NOR to negative.
> Are this planned in the next version of Blender?

I've submitted a patch that completes MTex. (except maybe the texture 
enable/disable buttons)