Notify user that their post has been modified

[dushan26]

Bump.

Also another problem with the technique I am using.

The flow is like this:

Someone posts a message - > gets taken to the "your message has been sent" screen -> gets sent back to their new post -> a message appears above their new post notifying them that it has been modified

It works, however if they post a quick reply their post is modified but they receive no notification. I think this is because the quick reply isn't affected by the postbit hook.