Zabbix

A.F....... [ZBX-19461] fixed validation of the second parameter in history functions

* commit '2da41b3c1c57c103f8826cfeae2ed589de5c3044':
  .......... [ZBX-19461] fixed indentation in the PHPDoc comments
  A.F....... [ZBX-19461] added usermacros option to CExpressionParser class #2
  A.F....... [ZBX-19461] added usermacros option to CExpressionParser class
  A.F....... [ZBX-19461] added usermacros option to CExpressionValidator class #2
  A.F....... [ZBX-19461] added usermacros option to CExpressionValidator class
  .D........ [ZBX-19461] added ChangeLog entry
  A......... [ZBX-19461] fixed support of quoted periods
  A......... [ZBX-19461] more strict validation of the lld and user macros in the quoted history function parameters
  .......... [ZBX-19461] fixed class name in the unit tests
  A......... [ZBX-19461] fixed validation of the history functions second parameter