Zabbix

.......... [DEV-2703] refactored Selenium autotest to check triggers in overlay dailog

Merge in ZBX/zabbix from feature/DEV-2703-6.5 to master

* commit '811afcdafa0ba0110f384b55c4b89dd415cb972f':
  .......... [DEV-2703] fixed objects names and styling
  .......... [DEV-2703] added dialogs closing
  .......... [DEV-2703] changed host group data and added table reload
  .......... [DEV-2703] moved and refactored Selenium test