Changes to ghc

Changes to ghc:
commit 22ed9ef718c03eb928ba69c67b85eb7f4d3bef0b
Author: Herbert Valerio Riedel <hvr@gnu.org>
Date:   Tue May 6 22:46:27 2014 +0200

    Update transformers submodule to new v0.4 rel

    This also updates the haskeline to upstream master to
    accomodate the new transformers version