Update 2014-08-11

Update packages:

    authenticate
    fb

Update dependencies from [haskell-core]:

    aeson
    attoparsec
    bifunctors
    conduit
    conduit-extra
    either
    free
    http-client
    http-client-tls
    http-conduit
    monad-logger
    optparse-applicative
    pandoc
    pandoc-types
    profunctors
    resourcet
    scientific
    semigroupoids
    tasty
    tasty-hunit
    tasty-th
    xml-conduit

Signed-off-by: Nicola Squartini <tensor5@gmail.com>