Add notifications for user to be activated

[Neraud]

Hi,

On my forum, we require an admin activation for new accounts and we want to use your extension to get notified when we have new accounts to review.

We currently only get notifications after an account is activated.

To keep the current behavior, I suggest to :

• Rename the current user added notification ("New user activated" ?)
• Add a new notification (" New user to activate" ?)