검색하기
https://www.elastic.co/guide/en/elasticsearch/reference/5.4/search.html
쿼리하기
https://www.elastic.co/guide/en/elasticsearch/reference/5.4/query-filter-context.html
페이징하기
https://www.elastic.co/guide/en/elasticsearch/reference/5.4/search-request-from-size.html
플러그인
web front-end : head
https://github.com/mobz/elasticsearch-head