[Haskell-cafe] ANN: (unofficial) nightly cabal-install builds for OSX

Dear Haskellers, I set up a semi-automatic system to provide you with `cabal` head builds for OSX / macOS at: https://haskell.futurice.com/ As a single highlight, these builds are useful if you need to setup OSX CI; multi-travis-ghc [1] can be used almost as is, see [2]. Hopefully you find these useful! [1]: https://github.com/hvr/multi-ghc-travis [2]: https://github.com/futurice/haskell-futurice-site/commit/3d9b40c6c61788589d3... Best regards, Oleg "phadej" Grenrus