Don't export when we don't select contact
Don't export when we don't select contact

svn path=/trunk/KDE/kdepim/kcontactmanager/; revision=968233

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