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

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