Zabbix

A.F....... [ZBX-16822] fixed performance issues for installations with a lot of historical alerts

* commit 'f73f1cb3066aa09877f97f02cf6891f2dff799ca':
  .......... [ZBX-16822] fixed incorrectly generated css files
  ..F....... [ZBX-16822] fixed error handling for eventlist and actionlist hintboxes
  ..F....... [ZBX-16822] removed unused code
  ..F....... [ZBX-16822] fixed mediatype name in actionlist hint
  ..F....... [ZBX-16822] fixed coding style: split hinboxes into separate controllers; fixed invalid parameter in URLEncode in eventlog hintbox
  A.F....... [ZBX-16822] fixed performance issues for installations with a lot of historical alerts