Merge r1643531 from trunk:

Move some tweaked/re-tested recipes from https://wiki.apache.org/httpd/RewriteQueryString into the 
extended doc for mod_rewrite.




git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1643532 13f79535-47bb-0310-9956-ffa450edef68