Zabbix

..F.I..... [ZBXNEXT-8754] updated item history period default value to 31 days

* commit '119c8532aee4699ac6ee1f548757fa0836ac1fd7':
  .......... [ZBXNEXT-8754] fixed minor coding style issues in selenium tests
  .......... [ZBXNEXT-8754] removed widget header element from screenshot assertion in corresponding test cases
  .......... [ZBXNEXT-8754] added micro style fixes
  .......... [ZBXNEXT-8754] fixed test data and added common method for replacing macro with fixed date in widget tests
  ..F....... [ZBXNEXT-8754] updated C64ImportConverter unit tests
  ....I..... [ZBXNEXT-8754] fixed changelog
  ....I..... [ZBXNEXT-8754] added dbupgrade patch for lld_override_ophistory history period default value to 31 days
  ....I..... [ZBXNEXT-8754] added dbupgrade patch for item history period default value to 31 days
  ..F....... [ZBXNEXT-8754] updated import converter and data adapter tests
  ..F....... [ZBXNEXT-8754] updated import converter for item history period; reverted unnecessary changes in version 6.4 import validator
  ....I..... [ZBXNEXT-8754] updated item history period default value to 31 days