Modifying ArticleEditUpdateNewTalk hook so that it passes the recipient

The recipient is the user who's talk page was edited. Extensions may
want to send or not send the notification based on some aspect of the
user, for example a preference.

Bug: 46550
Change-Id: Ifc8fbaf8fdc96f9c18c2a889d2e854e49b3a7010
Merge "Modifying ArticleEditUpdateNewTalk hook so that it passes the recipient"