[VERSION] v4.0.0

The Hexx::Service#escape re-rises the Hexx::Service::Invalid exception
in case any StandardError was raised by given block.

  begin
    escape { fail "text" }
  rescue => err
    err.is_a? Hexx::Service::Invalid # => true
    err.messages # => [#<Hexx::Service::Message @type="error" @text="text" >]
  end