Notification base presenter.
Refactor notification factories.
Notifications module.
Remove item path from notifications.
Install Draper.
Notification presenters.
Partials for notification text.
Remove passing magic options to the mailer.
Use presenters to customize notification content according to the notification type.
s/Presenter/Decorator
Use draper-style instantiation.
Validate inclusion of token.
Rename token to event in notifications.