Zabbix

.........T [ZBX-19253] removed ICMP checks, moved items to another application, changed update interval, added "Discard with heartbeat" preprocessing in APC UPS templates

Merge in ZBX/zabbix from feature/ZBX-19253-5.3 to master

* commit '25ad0ae3ec94bf8314181f6a101d9b2e52f6a9ac':
  .........T [ZBX-19253] changed update interval to 1h for the "External battery packs count" item
  .........T [ZBX-19253] removed ICMP checks, moved items to another application, changed update interval, added "Discard with heartbeat" preprocessing in APC UPS templates