Zabbix

..F.....S. [ZBXNEXT-5825,ZBXNEXT-5826] fixed support of Elasticsearch version 7.x

* commit '78c362d4262ddc5f0d5af94e5240628a4a68f15c':
  ........S. [ZBXNEXT-5825] fixed ChangeLog entry
  ........S. [ZBXNEXT-5825] added ChangeLog entry
  A......... [ZBXNEXT-5825,ZBXNEXT-5826] fixed value retrival for line graphs
  ........S. [ZBXNEXT-5825] fixed support of Elasticsearch version 7.x
  ..F....... [ZBXNEXT-5825,ZBXNEXT-5826] updated endpoint for elasticsearch