Fix fallout from notification changes

Commit 5f081b8f8d5c4 moved code without moving a helper function
used.

https://bugzilla.gnome.org/show_bug.cgi?id=710596
notificationDaemon: Pass the correct id to makeButton()

The function expects the action's ID, not the notification's one.

https://bugzilla.gnome.org/show_bug.cgi?id=710596