Fix typo.
Support cucumber features outside of transactions.
Add best bet exporter to elasticsearch format.
Include `_id` and `_type` in body for Rummager.

But not when sending direct to ElasticSearch.

This should be replaced by changing the Rummager
endpoint to allow an optional id and type param.
Merge pull request #4 from alphagov/best-bets-es-export

Add best bets ElasticSearch export