Zabbix

...G....S. [ZBX-13730] fixed some issues

(3) zbx_regexp_compile() now returns SUCCEED or fail
    regexp is returned via parameter

(4) Removed zbx_iregexp_match() .

(7) Made zbx_regexp_exec() & zbx_regmatch_t private.
    Using zbx_regexp_match_precompiled() instead.

(8) Droped flags parameter in zbx_regexp_compile() .

(9) Using opcaque zbx_regexp_t handles.