[arch-ports] [ppc] Announcement: core move completed

The [core] transition is finally done. A pacman update will add /etc/pacman.d/core, please change all references to "current" in /etc/pacman.conf to "core to receive future updates. You are not forced to upgrade immediately as the [current] repo will stay for some time to provide some backwards compatibility, but it will only contain pacman, libarchive and libdownload. There's a new ISO supporting the core repo available from ftp://ftp.archlinuxppc.org/iso/releases. A note to the devs: don't forget to rename your ~/staging/current dir to ~/staging/core -Armin