Changes to ghc(2)

Changes to ghc:
commit fe59334988fea384b119b7ef8372147b5c246bbf
Author: Herbert Valerio Riedel <hvr@gnu.org>
Date:   Wed Jun 4 09:45:27 2014 +0200

    Export `TimerManager` from GHC.Event (re #9165)

    This just addresses the specific issue raised in #9165. However, I've noticed
    the Haddock comments need to be improved, which will be addressed by a separate
    commit.

    Signed-off-by: Herbert Valerio Riedel <hvr@gnu.org>

commit d7a228b1cd2d0bd62c129ff631b4e198feced7fa
Author: Herbert Valerio Riedel <hvr@gnu.org>
Date:   Wed Jun 4 09:35:52 2014 +0200

    Set/update upstream repo url for haddock

    In the future, some script will use the last column to configure
    Git to redirect `push` operations to the respective primary Git
    repo.

    One way could be via the `pushInsteadOf` facility described in

      https://ghc.haskell.org/trac/ghc/wiki/WorkingConventions/Git/Submodules

    Signed-off-by: Herbert Valerio Riedel <hvr@gnu.org>