Allow to edit the organizer field if it is empty.
Allow to edit the organizer field if it is empty.

Kolab issue 3771
MERGE: e4, trunk, 4.3

svn path=/branches/kdepim/enterprise/kdepim/; revision=1000859

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