deprecate the ?ONEPAGE parameter. Use an explicit URL (all_in_one.html) instead.

It's still usable (stable URI, at least for 2.0) anyway.

This step is neccessary to use some offline tools (like CHM build)
until we've decided about an XML format of the faq.


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@99380 13f79535-47bb-0310-9956-ffa450edef68