Zabbix

.......PS. [DEV-2615] changed hidden JS object properties to be read only

Merge in ZBX/zabbix from feature/DEV-2615-5.0 to release/5.0

* commit 'e9b175f1c42dc9243028552a56a8cb3e735e7df1':
  .......PS. [DEV-2615] changed hidden JS properties to be read only