Changes to ghc(3)

Changes to ghc:
commit f30a01626461c3824aa6bccb1ed633bee26382bc
Author: Austin Seipp <aseipp@pobox.com>
Date:   Tue Feb 4 05:17:15 2014 -0600

    That should have been 7.8.0

    Signed-off-by: Austin Seipp <aseipp@pobox.com>

commit 9976c2ece3aa43dea21879e16dd911bb9c16e6b2
Author: Austin Seipp <aseipp@pobox.com>
Date:   Tue Feb 4 05:13:35 2014 -0600

    Bump version to 7.8.1

    The version for RC2 will appear as '7.8.1.<date>'

    Signed-off-by: Austin Seipp <aseipp@pobox.com>

commit 37d6e2c54f117f0a65f3032b6f30b6878b3f6f58
Author: Herbert Valerio Riedel <hvr@gnu.org>
Date:   Fri Jan 31 22:30:00 2014 +0100

    Update to latest Cabal 1.18 branch tip

    This update pulls in the fix for #8266

    (recommended add-on reading for those interested in OSX linker peculiarities:
    https://github.com/haskell/cabal/issues/1660#issuecomment-33701508 )

    Signed-off-by: Herbert Valerio Riedel <hvr@gnu.org>
    (cherry picked from commit 5671ad66b8c938939a44c883002caa4e13be098c)