SAK-26593 hash the eTag because we can't trust sending the resource title as the eTag as it may contain invalid XML characters


git-svn-id: https://source.sakaiproject.org/svn/dav/trunk@310475 66ffb92e-73f9-0310-93c1-f5514f145a0a
SAK-26592 WebDAV dropbox access was very slow for schools that use an external user provider because the Sakai internal user id was being set to the provider for every user directory. This reverses the lookup order to first try the cheap and easy lookup and then to try the expensive getUserByEid lookup if that fails


git-svn-id: https://source.sakaiproject.org/svn/dav/trunk@310478 66ffb92e-73f9-0310-93c1-f5514f145a0a