Zabbix

ADF.I..PS. [ZBXNEXT-6140] implemented new set of trigger functions for long term analytics

Merge in ZBX/zabbix from feature/ZBXNEXT-6140-5.1 to master

* commit 'a71cab65b550dafec683daad43ac4e09ac769487': (127 commits)
  .......... [ZBXNEXT-6140] regenerated php schema
  .D........ [ZBXNEXT-6140] added ChangeLog entry
  .D........ [ZBXNEXT-6140] added ChangeLog entry
  ..F....... [ZBXNEXT-6141] fixed unit tests for trend functions
  ..F....... [ZBXNEXT-6140,ZBXNEXT-6141] added period and period_shift validation in function validator
  ..F....... [ZBXNEXT-6140,ZBXNEXT-6141] added trend function
  ..F....... [ZBXNEXT-6140,ZBXNEXT-6141] added test case for incorrect syntax
  A.F....... [ZBXNEXT-6140,ZBXNEXT-6141] added event name field validation; added event name unit tests
  ........S. [ZBXNEXT-6140] added TIME macro support to event name
  ..F....... [ZBXNEXT-6140] removed incorrect added functions fmtnum and fmttime
  ..F....... [ZBXNEXT-6140,ZBXNEXT-6141] added fmttime and fmtnum functions and tests
  ..F....... [ZBXNEXT-6140] added event name related parsers; added unit test for event name parser
  ..F....... [ZBXNEXT-6141] removed unnecessary parameters for trendcount function validation
  ........S. [ZBXNEXT-6140] added expression macro fmtnum function support
  ........S. [ZBXNEXT-6140] add function support to macro expressions
  ........S. [ZBXNEXT-6140] fixed timer removal in the case of invalid scheduling interval
  ........S. [ZBXNEXT-6184] removed debug code
  .......... [ZBXNEXT-6140] fixed zbx_token_find test cases
  ........S. [ZBXNEXT-6140] fixed expression macro handling in LLD
  ........S. [ZBXNEXT-6140] removed redundant parameters from expression macro calculations
  ...