Fix batch pass wrong arguments

[fcce]

Superworker.define(:MyBatchSuperworker, :user_ids, :comment_ids) do
  batch user_ids: :user_id do
    Worker1 :user_id
  end
  Worker2 :comment_ids
end

MyBatchSuperworker.perform_async([10, 11, 12], [20, 21])

The above produces a sequence should equivalent to this :

Worker1.new.perform(10)
Worker1.new.perform(11)
Worker1.new.perform(12)
Worker2.new.perform([20,21])

[fcce]

also fix bug #39

[jeremyhaile]

@fcce I see this was closed - was it merged in?

[fcce]

sorry, not merged. This project seems don't updated any more. @jeremyhaile