Changes to ghc(2)

Changes to ghc:
commit 881be80e97629c092784efcbe089d46e94203893
Author: Mateusz Kowalczyk <fuuzetsu@fuuzetsu.co.uk>
Date:   Wed Jun 25 10:53:56 2014 +0200

    Fix anchors in Haddock

    Updates submodule

commit 97ac32a06a10ce3719705d064054dc047ab86e48
Author: Gabor Greif <ggreif@gmail.com>
Date:   Fri Jun 6 16:15:21 2014 +0200

    Typos in comments