Add unknown attendees which did not appear in the original event as voluntary/optional attendees. This happens when people reply that were invited as part of a server side distribution list. Patch by Bo.
Add unknown attendees which did not appear in the original event as
voluntary/optional attendees. This happens when people reply that were
invited as part of a server side distribution list. Patch by Bo.

svn path=/branches/proko2/kdepim/; revision=364294

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