For Apache 2.4, separate module loading from configuration.
Reinitialize the error structure after error.

Addressing
Error dbus calling GetUserGroups(admin, ): org.freedesktop.DBus.Error.ServiceUnknown: The name org.freedesktop.sssd.infopipe was not provided by any .service files
process 2577: arguments to dbus_connection_send_with_reply_and_block() were incorrect, assertion "(error) == NULL || !dbus_error_is_set ((error))" failed in file dbus-connection.c line 3346.
This is normally a bug in some application using the D-Bus library.
  D-Bus not built with -rdynamic so unable to print a backtrace
[notice] child pid 2577 exit signal Aborted (6), possible coredump in /etc/httpd
Fix reporting of failed calls that have no parameters.
Tagging 0.9.2 release.