Don't try to add empty attendee caladdress#273

sunkup merged 1 commit intoical4j-3to4bitfireAT/synctools:ical4j-3to4from

211-jtx-board-npe-when-adding-non-email-address-attendeebitfireAT/synctools:211-jtx-board-npe-when-adding-non-email-address-attendeeCopy head branch name to clipboard