Zabbix

..F....... [ZBX-3754] fixed "Undefined variable" in the trigger expression constructor
..F....... [ZBX-3038] fixed the trigger expression constructor to parse expressions created in log wizard
..F....... [ZBX-2793] added possibility to add macros without an item in the trigger expression
..F....... [ZBX-5896] fixed inserting OR condition the trigger expression constructor
A.F....... [ZBX-5833] fixed inserting a macro in the trigger expression constructor
..F....... [ZBX-5884] improved the trigger expression constructor to work with parentheses