new mailtemplates and a note how to change them in sqlite

git-svn-id: https://textgridlab.org/svn/textgrid/trunk/middleware/tgauth@13637 7c539038-3410-0410-b1ec-0f2a7bf1c452

info.textgrid.middleware.tgauth.tgaccount/install/mailtemplates.sqlite.sql

@@ -44,7 +44,7 @@ Mit freundlichen Grüßen
 {sender}
 im Namen des TextGrid-Teams
 ');
-INSERT INTO `mail_template` VALUES (4,'en','Welcome','Dear {name},
+INSERT INTO `mail_template` VALUES (4,'en','Welcome','TextGrid Account', 'Dear {name},
 
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