[arch-dev-public] rename python3-numpy to python-numpy (FS#23139)

[Stéphane Gaudreault]

Hi,

I will upload python 3.2.1 tomorrow. There is no rebuild required for this 
python update, but I would like to "fix" FS#23139 (i.e rename python3-numpy to 
python-numpy in [staging] and create the usual todo list to update/rebuild 
dependencies).

Any objections?

Stéphane