Add HTTPD_VERSION and HTTPD_MMN to the variables available with apxs -q

PR58202. 

Submitted By: Daniel Shahaf 
Committed By: covener




git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@1693919 13f79535-47bb-0310-9956-ffa450edef68