squirrelmail-1.4.8 from CentOS5.
Adds choice of buttons instead of popup menu and button for delete_move_next plugin, so a single click is all that is needed. Having the buttons in the same place each time allows for muscle memory and faster email handling by a user. If there are lots of mailboxes, the buttons wrap on multiple rows, which seems fine.
Also adds next / prev links around the delete & next and delete & prev links.