Decouple mod_lua max regex matches from AP_MAX_REG_MATCH.
Bumped the default to 25 matches; this default can be
overwritten with a CLFAGS define.


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@1467718 13f79535-47bb-0310-9956-ffa450edef68