Changed: Handling of categories on shared collaboration items is more consistent. (Categories will no longer appear when viewing a collaboration item from a folder that has been shared to you.)
Changed: Handling of emails with multiple from addresses in webmail is more consistent.
Fixed: Deleting attendees in an appointment doesn't activate the Save button.
Fixed: Editing a contact owned and shared by another user clears out the owner's categories.
Fixed: Impersonating an account updates the last login time.
Fixed: MAPI doesn't always set a meeting UID and SEQUENC number for modified events.
Fixed: MAPI recurring appointment set to 'last day of month' is displayed incorrectly in webmail.
Fixed: Removing all attendees from appointment in webmail fails to actually remove them on save.
Fixed: Users of a shared contact folder can edit the categories set for the folder by its owner.
