SAK-26593 WebDAV directory listing can contain invalid XML because of eTag


git-svn-id: https://source.sakaiproject.org/svn/dav/branches/sakai-2.8.x@310692 66ffb92e-73f9-0310-93c1-f5514f145a0a
SAK-26592 DAV group-user access should not look up internal user ids in the UserDirectoryService


git-svn-id: https://source.sakaiproject.org/svn/dav/branches/sakai-2.8.x@310694 66ffb92e-73f9-0310-93c1-f5514f145a0a