Changes to ghc

Changes to ghc:
commit 4b74f6ca3fb962e9e9ccff1665f4d941763101e4
Author: Austin Seipp <austin@well-typed.com>
Date:   Thu Jul 3 20:35:47 2014 -0500

    Update .gitignore

    Signed-off-by: Austin Seipp <austin@well-typed.com>