Zabbix

.......... [DEV-2621] changed edit method in widget element and fixed Selenium tests

Merge in ZBX/zabbix from feature/DEV-2621-7.5 to master

* commit 'ba88f8a8eb187d005150e361248ce8847e4c65f7':
  .......... [DEV-2621] removed try catch in edit method
  .......... [DEV-2621] changed edit method in widget element and fixed tests