Update 2014-12-07

Update packages:

    data-lens-light
    lens
    pipes-http

Update dependencies from [haskell-core]:

    HStringTemplate
    aeson
    attoparsec
    bifunctors
    comonad
    conduit
    conduit-extra
    contravariant
    cprng-aes
    crypto-random
    either
    free
    http-client
    http-client-tls
    http-conduit
    monad-logger
    pandoc
    pandoc-types
    parallel
    profunctors
    scientific
    semigroupoids
    semigroups
    uuid
    vector
    void
    xml-conduit

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