Zabbix

.......... [DEV-4102] added Selenium tests for checking default selection of elements in broadcaster widgets, default data display in listener widgets and added missing listener widgets

* commit '7abe5bced215115f3a34211f066b28e25d754b18':
  .......... [DEV-4102] written possible opened dialog and popup into variables due to issue with failing to locate the correct close button in dialog
  .......... [DEV-4102] removed unnecessary widget double mentioning in data provider and unnecessary part of SQL
  .......... [DEV-4102] implemented listener misconfiguration scenario for hostgroups and hosts pages
  .......... [DEV-4102] added checking broadcaster deletion for mixed broadcasting page
  .......... [DEV-4102] changed element positioning on map to check that element that is positioned to the left upper corner is autoselected and not the element with smaller ID
  .......... [DEV-4102] added Graph widget to broadcaster deletion scenario for hosts page due to override host
  .......... [DEV-4102] added map broadcaster deletion check
  .......... [DEV-4102] uncommented test case according to TODO comment
  .......... [DEV-4102] applied changes according to review comments
  .......... [DEV-4102] removed comment that is no longer relevant
  .......... [DEV-4102] frixed duplicate test case naming in Selenium test
  .......... [DEV-4102] added Selenium tests for default selection of elements in broadcaster widgets and added missing listener widgets