@hackage arch-hs0.12.0.1

Distribute hackage packages to archlinux

arch-hs is a command-line program, which simplifies the process of producing and maintaining haskell packages for archlinux distribution by automating the PKGBUILD generation with the dependency resolving and template filling. Currently, arch-hs is unstable, so packagers should not trust it 100%, but always follow the Haskell package guidelines.