Fix updating of the encoding combo box when the override encoding is changed from the menu.
Fix updating of the encoding combo box when the override encoding is
changed from the menu.

svn path=/trunk/kdepim/; revision=376671

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