wait 2 minutes before mailing out new comments to allow edits

script/mail_new_activity

@@ -120,6 +120,11 @@ last_comment_id = (Keystore.value_for(LAST_COMMENT_KEY) ||
 
 Comment.where("id > ? AND (is_deleted = ? AND is_moderated = ?)",
 last_comment_id, false, false).order(:id).each do |c|
+  # allow some time for newer comments to be edited before sending them out
+  if (Time.now - c.created_at) < 2.minutes
+    break
+  end
+
   mailing_list_users.each do |u|
     if (c.story.tags.map{|t| t.id } & u.tag_filters.map{|t| t.tag_id }).any?
       next