Zabbix

A.FG...PS. [ZBXNEXT-8758] added proxy load balancing and HA

* commit '899e6f1d586e3c37cdb850df7e904f09e9c7663f': (276 commits)
  A......... [ZBXNEXT-8758,ZBXNEXT-8938] fixed duplicate services being returned after new hosts are discovered via network discovery, if proxy was added/removed to group before that
  A......... [ZBXNEXT-8758,ZBXNEXT-8938] fixed unknown column in where clause error
  .......... [ZBXNEXT-8758] fixed cmocka build
  A......... [ZBXNEXT-8758,ZBXNEXT-8938] fixed discovered host name not being displayed in Monitored host column in Monitoring > Discovery if network discovery was done using proxy that is assigned to a proxy group #3
  ........S. [ZBXNEXT-8758] fixed warning
  ...G...PS. [ZBXNEXT-8758] fixed coding style issues and warnings
  .......... [ZBXNEXT-8758] fixed expected result in selenium test
  .D........ [ZBXNEXT-8758,ZBXNEXT-8938] added changelog file
  ........S. [ZBXNEXT-8758] added comment
  A......... [ZBXNEXT-8758,ZBXNEXT-8938] fixed duplicate aliases
  A......... [ZBXNEXT-8758,ZBXNEXT-8938] fixed code style
  A......... [ZBXNEXT-8758,ZBXNEXT-8938] made "use_distinct" option for building custom SQL queries mandatory
  A......... [ZBXNEXT-8758,ZBXNEXT-8938] fixed discovered host name not being displayed in Monitored host column in Monitoring > Discovery if network discovery was done using proxy that is assigned to a proxy group #2
  .......P.. [ZBXNEXT-8758] added host_proxy table cleanup on proxy conf sync when proxy is deleted
  ..F....... [ZBXNEXT-8758,ZBXNEXT-8938] fixed Test with: Server being ignored and proxyid being always sent to server #2
  A......... [ZBXNEXT-8758,ZBXNEXT-8938] fixed discovered host name not being displayed in Monitored host column in Monitoring > Discovery if network discovery was done using proxy that is assigned to a proxy group
  ..F....... [ZBXNEXT-8758,ZBXNEXT-8938] improved item key descriptions
  A......... [ZBXNEXT-8758,ZBXNEXT-8938] added missing validation of "monitored_by", "proxyid" and "proxy_groupid" to host.massupdate
  ..F....... [ZBXNEXT-8758,ZBXNEXT-8938] fixed "Enable hosts" and "Disable hosts" mass action buttons being enabled if selected proxy not being used by any host or belongs to proxy group that is used to monitor host
  A......... [ZBXNEXT-8758,ZBXNEXT-8938] fixed typo
  ...