[Bf-python] obj i/o

[Campbell Barton]

Hi, this is a copy from the blender forum.

The obj i/o in the CVS should be updated with these.

Importer now imports inline 'usemap' keywords to assign UV textures, MTL 
export has changed a bit.
Bugfix where only the last object had materials applied to it was fixed.
http://members.iinet.net.au/~cpbarton/obj_import.py 
<http://members.iinet.net.au/%7Ecpbarton/obj_import.py>

Exporter now exports MTL files, as well as UV image textures.
http://members.iinet.net.au/~cpbarton/obj_export.py 
<http://members.iinet.net.au/%7Ecpbarton/obj_export.py>

Its now possible to export a large scene with materials and UV 
mapping/images
And import it- keeping all the properties supported by obj.

Please dont use the old OBJ I/O, these have some important Bugfixes.

- Cam