Reverse the order when merging global and vhost-level config arrays.

Putting the vhost-level elements last allows overriding global settings
(for the deprecated SSLRequire directive, the order is irrelevant,
all of them must be met, cf. ssl_engine_kernel.c:ssl_hook_Access).


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@1585919 13f79535-47bb-0310-9956-ffa450edef68