Zabbix

A.F....... [ZBX-19918] prevented redundant audit log entries of failed logins when visiting login page if guest account is disabled; removed automatic login as guest user when entering any page requiring authentication

Merge in ZBX/zabbix from feature/ZBX-19918-6.5 to master

* commit 'd8c6a8f8d2d9894de47cdaea99700aee2f2ee858':
  .......... [ZBX-19918] removed userids from dataprovider
  .......... [ZBX-19918] added dataprovider to autotests, added one more value to login sql
  .......... [ZBX-19918] added login for guest user
  .......... [ZBX-19918] fixed incorrect syntax in the testDashboardViewMode test case
  ..F....... [ZBX-19918] fixed field list for CSettingsHelper::get() method
  ..F....... [ZBX-19918] fixed incorrect "Unable to load settings API parameters" message on some pages; in fact, a partial revert of ZBX-22601 was made
  ..F....... [ZBX-19918] removed unnecessary checks for field presenece in CSettingsHelper, CHousekeepingHelper and CAuthenticationHelper classes
  ..F....... [ZBX-19918] removed "severity_name_\*" parameter from CSettings::getPublic() method
  ..F....... [ZBX-19918] removed ok_period parameter from CSettings::getPublic() method; fixed conflicts in:
  A......... [ZBX-19918] simplified code
  A......... [ZBX-19918] removed redundant code
  A......... [ZBX-19918] simplified code
  ..F....... [ZBX-19918] fixed incorrect redirection of the guest user after successful login when the previously requested page required to login
  .......... [ZBX-19918] added user logout
  .......... [ZBX-19918] fixed autotests; fixed conflicts in:
  A.F....... [ZBX-19918] fixed coding style
  A.F....... [ZBX-19918] fixed inability to view a proxy version on proxies UI page
  A.F....... [ZBX-19918] fixed incorrect timeout used to display OK triggers
  A.F....... [ZBX-19918] fixed displaying of empty severity names
  A.F....... [ZBX-19918] prevented redundant audit log entries of failed logins when visiting login page if guest account is disabled; removed automatic login as guest user when entering any page requiring authentication