Zabbix

..F.....S. [ZBXNEXT-721] added temporary suppress problem functionality

Merge in ZBX/zabbix from feature/ZBXNEXT-721-6.1 to master

* commit '047617eeeb284ee9cd7705d2833d08868beafbb4': (87 commits)
  .D........ [ZBXNEXT-721] updated changelog entry
  .D........ [ZBXNEXT-721] updated changelog entry
  ..F....... [ZBXNEXT-721] reverted commit 4342c82bf6853bc76b626a0dad97f3cbbf0fbece
  ..F....... [ZBXNEXT-721] fixed unsuppress checkbox
  ..F....... [ZBXNEXT-721] reverted commit 94375620ee04542f02ebf11d2314851928e31acd
  ..F....... [ZBXNEXT-721] fixed unsuppression checkbox in problem update form
  ..F....... [ZBXNEXT-721] fixed selection of suppression actions from acknowledges
  ..F....... [ZBXNEXT-721] fixed flashing suppression icon being shown after suppression expires
  ........S. [ZBXNEXT-721] removed suppress_until parsing when processing unsuppress action
  ....I..... [ZBXNEXT-721] added missing database patch
  A......... [ZBXNEXT-721] fixed suppression task recording in database
  .......... [ZBXNEXT-721] changed task_data.parent_taskid definition in schema to allow nulls
  ....I..... [ZBXNEXT-721] changed task_data table parent_taskid field to allow nulls
  ........S. [ZBXNEXT-721] fixed coding style in scalator.c
  ..F....... [ZBXNEXT-721] implemented flashing suppression/unsuppression info icons
  ..F....... [ZBXNEXT-721] fixed two additional places with check if close action is available
  ..F....... [ZBXNEXT-721] fixed two additional places with check if close action is available
  ..F....... [ZBXNEXT-721] fixed check if close action is available
  .......... [ZBXNEXT-721] updated user permission autotest
  ..F....... [ZBXNEXT-721] implemented helper function to check when event is closed or marked to be closed
  ...