rake elasticsearch:import:model - ArgumentError: unknown keyword: :type (ArgumentError)

[beatjoerg]

With the commit "Removing type related code b71d5a9" the type related code was removed, but it is still an option in the rake task, which will fail because the now unknown option "type" is passed down to find_in_batches (instead to be removed in the index function). I will post a pull request to fix that issue.