*) adds compile-time/run time SSL-C version support
*) simplify a ton of overly-verbose legacy code
*) split the compiled-against v.s. runtime library
*) precache the results of the version string touchup



git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@520701 13f79535-47bb-0310-9956-ffa450edef68