Item12823: Add Auto-Submitted header to MailerContrib email templates

git-svn-id: http://svn.foswiki.org/trunk@17446 0b4bb1d4-4e5a-0410-9cc4-b2b747904278
Item12823: Add Auto-Submitted header to registration / password-reset email templates

git-svn-id: http://svn.foswiki.org/trunk@17447 0b4bb1d4-4e5a-0410-9cc4-b2b747904278