Show more indentifying info on log view page.
Merged accounts are likely to have the same name listed. They are, after all, the same person, apparently.
Therefore more indentifying information is useful in vrious places including the log page. Email address
is added by this commit as well and idnumber (if present).  Multiple users have indicated idnumber is used
as a primary id, so that's included, but with no visible delimiter so nothing is shown if the idnumber is empty.