* include/ap_regex.h: Include apr.h not stdlib.h; replace pointless

regoff_t typedef with int; s/size_t/apr_size_t/;.  Comment fixes.

* server/util_pcre.c: s/size_t/apr_size_t/.

* include/httpd.h: Include stdlib.h here instead since many other
files assume it was included by httpd.h at some point.


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@153407 13f79535-47bb-0310-9956-ffa450edef68