A complete re-write of mod_include. This has served the entire manual

      now.  This makes mod_include a filter that uses buckets directly.
Submitted by:	Paul J. Reder <rederpj@raleigh.ibm.com>
Reviewed by:	Ryan Bloom


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@87067 13f79535-47bb-0310-9956-ffa450edef68