! Move the various notification functions from post.subs to Notification.subs.php

Signed-off-by: Spuds <spuds@spudsdesign.com>
! convert the various calls to notifications to the new location / names

Signed-off-by: Spuds <spuds@spudsdesign.com>
Merge pull request #988 from Spuds/notification

Notifications