forward port of the fix for the unread count
forward port of the fix for the unread count

svn path=/trunk/KDE/kdepim/; revision=465808

lefou/kdepim-noakonadi,lefou/kdepim-noakonadi,lefou/kdepim-noakonadi,lefou/kdepim-noakonadi,lefou/kdepim-noakonadi,lefou/kdepim-noakonadi