Propose DAV fixes.


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.2.x@1485685 13f79535-47bb-0310-9956-ffa450edef68
Promote, noting wrowe's -1 becoming +1.


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.2.x@1485688 13f79535-47bb-0310-9956-ffa450edef68