Zabbix

.......PS. [ZBXNEXT-5829] replaced uint64 hash function with faster one

* commit '485ea1fd6eb43e4651c503095e473b9ad5b1c545':
  .......... [ZBXNEXT-5829] added changelog entry
  .......PS. [DEV-1417] fixed housekeeper to use ne hash function
  .......PS. [DEV-1417] replaced default uint64 hashing function with function optimized for 64 bit integer hashing