consolidate apr global_mutex setup

use httpd 2.3.4 mutex creation APIs so that Mutex directive is
respected and can be used for mod_fcgid's mutexes


git-svn-id: https://svn.apache.org/repos/asf/httpd/mod_fcgid/trunk@885868 13f79535-47bb-0310-9956-ffa450edef68
11 files changed