[Bf-python] Mesh Colors

[Campbell Barton]

Hi All, I was looking at making MCols (mesh color) sequencable-
so one could do-

r,g,b= face.col[0]

rather then

r= face.col[0].r
g= face.col[0].g
b= face.col[0].b

But this let be to wonder what the alpha value did. as far as I can tell 
its only ever used for the vertex paint code to work woth soft brushes 
(verts that are further away get a lower alpha), nowhere else can I see 
it being used.

Could we remove access to the alpha value since (AFAIK) it has no 
practicle use?

- Cam