Update 2014-11-25

Update packages:

    clientsession
    pipes
    skein
    traverse-with-class

Update dependencies from [haskell-core]:

    conduit
    conduit-extra
    http-client
    http-client-tls
    http-conduit
    monad-logger
    pandoc
    resourcet
    xml-conduit

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