1365: Tag merge resubmission to-do:

[yvi]

* POD documentation

* my $err?

* $userid secure

* push @jitemids, $itemid unless ( grep /$itemid/, @merge_to_jitemids );

* make sure all of your tables are InnoDB

* ZOM

* $u->do("DELETE FROM $table WHERE journalid = ? AND " . $wherestring,

* merging two+ tags that don't have any entries associated with them