Update devtools to arch devtools 20141024
- Uses now systemd-nspawn, so its not compatible with openrc.
- Added bash and zsh completion.
- mkarchroot (mkmanjaroroot) lost the -b (branch) -a (arch) options instead you should copy the correct files using -M for makepkg (arch) or -S for pacman-mirrors (branch). The archbuild (manjarobuild) script have been updated to follow this.
- makechrootpkg also lost the -b option (branch), instead it should point to a chroot with the correct branch and other config files already set.
- manjarobuild and mkmanjaroroot are now symlinks to archbuild and mkarchroot (to keep differences from upstream to a minimum).
- Includes all fixes and updates between upstream devtools-20130408 and devtools-20141024.