SAK-19397 provide more defaults for email template administration text


git-svn-id: https://source.sakaiproject.org/svn/emailtemplateservice/trunk@307401 66ffb92e-73f9-0310-93c1-f5514f145a0a
SAK-20770 update to use freemarker 2.3.20 http://freemarker.org/docs/versions_2_3_20.html


git-svn-id: https://source.sakaiproject.org/svn/emailtemplateservice/trunk@307404 66ffb92e-73f9-0310-93c1-f5514f145a0a