mod_lua: Pass on the request_rec to ap_lua_get_lua_state, so we can use it for...

mod_lua: Pass on the request_rec to ap_lua_get_lua_state, so we can use it for allocating memory for the cache info lookup.

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@1367040 13f79535-47bb-0310-9956-ffa450edef68