Zabbix

..F....... [ZBX-17898] fixed JavaScript errors on pasting widgets

* commit '9c69695af97e1e789591a733b4641fa8902d75fe':
  ..F....... [ZBX-17898] disabled Add button in widget configuration form on exhausted dashboard
  ..F....... [ZBX-17898] simplified promise expressions
  ..F....... [ZBX-17898] reverted permanently disabling "Save changes" button on saving changes
  ..F....... [ZBX-17898] fixed incomplete variable refactoring
  ..F....... [ZBX-17898] fixed scroll effect on adding new widgets; fixed disabling widget controls while busy
  ..F....... [ZBX-17898] removed debug info
  ..F....... [ZBX-17898] fixed JavaScript errors on pasting widgets
  ..F....... [ZBX-17898] fixed dashboard-exhausted message; fixed not-enabling save-dashboard button

(cherry picked from commit 816576f7641f8fb32499b1d4f3faa2f328dc8a66)