use qtoolbutton for closing the tab button instead of pushbutton, to be consistent with konqueror
use qtoolbutton for closing the tab button instead of pushbutton, to be consistent with konqueror

svn path=/trunk/KDE/kdepim/akregator/; revision=850662

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