backport SVN commit 907904 by winterz:
backport SVN commit 907904 by winterz:

Fix a crash when deleting a contact's email address.

svn path=/branches/KDE/4.2/kdepim/; revision=907905

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