Reverted code that was causing issues with groups (#2090)
Update Czech translation
Fix possible infinite loop in repeataable object
Fix until date in component editor
Fix saving all-day event in appointment editor
Use older NSPropertyListSerialization methods

dataWithPropertyList and propertyListWithData didn't exist in gnustep 1.20
which is shipped with debian-squeeze.
Fix handling of decoding contacts UID

A problem occurs when the contact UID contains a special character that
was HTML encoded (ex: space, &, ").
Code cleanup in UIxAppointmentEditor.m
Update NEWS file
Update updates.php
Update NEWS file
Format birthday on contact card
Update French translation
Bump version to 2.0.4a
Update ChangeLog
Merge to 2.0.4a