[ticket/11103] Move all email templates to the email/ directory & prep short

Prepare short email templates (to be used in jabber)

PHPBB3-11103

phpBB/language/en/email/bookmark.txt

@@ -0,0 +1,20 @@
+Subject: Topic reply notification - "{TOPIC_TITLE}"
+
+Hello {USERNAME},
+
+You are receiving this notification because a topic you bookmarked, "{TOPIC_TITLE}" at "{SITENAME}", has received a reply since your last visit. You can use the following link to view the replies made, no more notifications will be sent until you visit the topic.
+
+If you want to view the newest post made since your last visit, click the following link:
+{U_NEWEST_POST}
+
+If you want to view the topic, click the following link:
+{U_TOPIC}
+
+If you want to view the forum, click the following link:
+{U_FORUM}
+
+If you no longer wish to receive updates about replies to bookmarks, please update your notification settings here:
+
+{U_NOTIFICATION_SETTINGS}
+
+{EMAIL_SIG}