app/js/controllers.js: Use detect_noop for Elasticsearch updates

Ask Elasticsearch to only bump an item's version if we're changing
data [1].

[1]: http://www.elasticsearch.org/guide/en/elasticsearch/reference/current/docs-update.html
setup_index: Use Beehive's id in Elasticsearch

http://www.elasticsearch.org/guide/en/elasticsearch/client/javascript-api/current/api-reference.html#api-create