Zabbix

A.F....... [ZBX-21739] fixed not updating discover status for templated graph prototype

* commit '99b0647e0daa1b85c63dd0d3c084c478bd0311a8':
  A......... [ZBX-21739] fixed graph validation error if no graph data given
  A......... [ZBX-21739] fixed error message when trying to update templated graph
  A......... [ZBX-21739] fixed undefined index errors when updating inherited graph prototype discover status
  .......... [ZBX-21739] fixed changelog
  .......... [ZBX-21739] fixed changelog message
  A......... [ZBX-21739] fixed templated graph prototype update to not validate other parameters than discover status
  A......... [ZBX-21739] added error when trying to update a templated graph
  A......... [ZBX-21739] fixed typos in php documentation commentaries
  .......... [ZBX-21739] fixed changelog message
  A.F....... [ZBX-21739] fixed inherited graph unsetting, improved update button enabling code
  ..F....... [ZBX-21739] added index check
  A.F....... [ZBX-21739] fixed not updating discover status for templated graph prototype