Update 2014-05-02

Move to [haskell-core]:

    HStringTemplate

Update dependencies from [haskell-core]:

    HTTP
    aeson
    attoparsec
    bifunctors
    blaze-builder
    blaze-html
    blaze-markup
    case-insensitive
    comonad
    conduit
    conduit-extra
    contravariant
    distributive
    free
    hashable
    haskell-src-exts
    hslogger
    http-types
    json
    maccatcher
    monad-logger
    network
    parsec
    profunctors
    scientific
    semigroupoids
    semigroups
    streaming-commons
    system-fileio
    system-filepath
    tagsoup
    text
    unordered-containers
    uuid
    void
    wl-pprint-text
    xml
    xml-conduit
    xml-types

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