Re-send email notification

Rational

In some case (ex: wrong email), it could be useful to be able to re-trigger the email notification manually.
This re-triggering should be allowed only if the condition of the trigger is still true.

Proposal

A generic wizard (can run on any model) propose a selection of email notification that can be triggered for the selected records. Then it calls the send_email for the notifications selected.
To activate this wizard on a specific model, the user will only have to add a keyword to the wizard action.

Implementation

Indeed the proposal could be more generate by using directly the trigger instead of the notification.