Zabbix

A.F....... [ZBX-21503] prevented creation of audit logs for Media type objects on updates without actual changes

* commit '9a7941c82e4f69ff968065571f66c33df5498362':
  ..F....... [ZBX-21503] improved code style
  ..F....... [ZBX-21503] corrected inverted change_passwd flag
  ..F....... [ZBX-21503] fixed "Change password" button display for mediatype with authentication using empty password
  A......... [ZBX-21503] reverted changes in mediatype API; added condition for masking mediatype password
  A......... [ZBX-21503] added filtering of unchanged media types