Make the close tab button look nice when disabled.
Make the close tab button look nice when disabled.

svn path=/trunk/kdepim/akregator/; revision=365345

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