add email subscription table

migration/tables/users.py

@@ -1,4 +1,5 @@
 from orm import User, Role, UserRating
+from orm.user import EmailSubscription
 import frontmatter
 from dateutil.parser import parse
 from migration.html2text import html2text
@@ -88,6 +89,13 @@ def migrate(entry):
 
 	return res
 
+def migrate_email_subscription(entry):
+	res = {}
+	res["email"] = entry["email"]
+	res["createdAt"] = parse(entry["createdAt"])
+
+	subscription = EmailSubscription.create(**res)
+
 def migrate_2stage(entry, id_map):
 	for rating_entry in entry.get('ratings',[]):
 		rater_old_id = rating_entry['createdBy']