[Bf-python] Blender and lists

[Campbell Barton]

Hi guys (python devs - ianwill, khpython, stivs)

Colorbands, renderlayers, modifiers and MTex's will probably use this 
but I need to be sure this is the way to go.

If your ok about letting me make the decision (allowing for small to mid 
alterations later) - Ill go ahead, otherwise Id like to get an answer on 
this sooner then later.

My preference is...
http://wiki.blender.org/index.php/Rewriting_the_2.4x_BPython_API#List_SubType

Can turn this into an API without much trouble,,