Unbreak invitation sending.
Unbreak invitation sending.

Kolab issue 2403

svn path=/branches/kdepim/enterprise/kdepim/; revision=764828

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