Joe Orton writes:

This updates mod_dav for the util_xml changes posted previously:

* dav_xml -> ap_xml, and dav_text -> ap_text renaming
* Add 'dav_elem_private' to hook mod_dav-specific info up to the
  parsed XML tree. Initialize this in several places, I think I got
  all necessary?  [gjs: yes, you did]
* Removal of the old "gross_hack", and all the XML code that was
  moved into util_xml

Submitted by: Joe Orton <joe@orton.demon.co.uk>
Reviewed by: Greg Stein


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@85761 13f79535-47bb-0310-9956-ffa450edef68