Some issues about notification page

1. The pagination of the notification page doesn’t appear. I checked the source code and I found that the function “ap_notification_pagination()” is deprecated. Will it be fixed?
2. If somebody comments at an answer or question, the author of the answer or question will receive a notification, right? But, I found that if the answer or question is deleted before the author read the notification, the notification will disappear in notification list but the unread notification count will not decrease, which shows at the profile navigation.
3. How can I change the number of the notifications shown in the notification page?

Please excuse my English because my mother tongue is not English. I really like this plugin and I am willing to contribute to the translation of this plugin~!