Const fix from proko2.
Const fix from proko2.

svn path=/trunk/kdepim/; revision=360390

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