Log Message:
Update to 1.8.0. Changes:

Added libgcrypt support
Added support for Calendar app
Export function for KeyRing data
Overhaul of Expense plugin
Overhaul VCARD export including adding IM, Birthday, Website fields
GUI changes: ToDo items due today are marked by a soft green color
GUI changes: new alarm clock and lock icons
GUI changes: radio buttons to select between timed and untimed events

Fixed Mac OS X bugs/crash
Resolve segmentation fault when editing Contacts with attached pictures
Resolve error where Contacts created on Palm could not be deleted with Jpilot
Resolve sync error with simultaneously modified Contacts
Fix Bug 1991 : Categories are lost during first sync