Changes to ghc haddock

Changes to ghc:
commit 63b0e1b54cbf09a275e4886f9bfa55701ab5e8b6
Author: Mateusz Kowalczyk <fuuzetsu@fuuzetsu.co.uk>
Date:   Tue Apr 1 19:15:53 2014 +0100

    Update Haddock submodule

Changes to haddock:
commit c2a1f755565008efbee80cdd51eabeeb0606fe51
Author: Mateusz Kowalczyk <fuuzetsu@fuuzetsu.co.uk>
Date:   Tue Apr 1 19:18:36 2014 +0100

    Actually bundle extra spec tests in sdist