Backport "Fix mem leak" and "Update button when we add item"
Backport "Fix mem leak" and "Update button when we add item"

svn path=/branches/KDE_3_3_BRANCH/kdepim/; revision=363715

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