Change log:
- Added: sync birthday fields
- Added: sync nickname
- Added: option to derive first and last names from display name
- Added: sync web page fields
- Added: sync custom fields
- Added: sync contacts photos (read only)
- Added: support Thunderbird3.1
- Fixed: cannot copy/move cards from a Google account to another account
- Fixed: a message pops up when sending a email
- Fixed: failed to sync a card which was modified several times
- Fixed: "mail list already exists" error is shown for system groups
- Fixed: cannot add a card on batch mode
- Fixed: cannot modify mail list on batch mode
- Fixed: deleting items in Google is ignored in Thunderbird
- Fixed: cannot remove primary email in Thunderbird
- Fixed: Primary Email will become same as Secondary Email when Primary is removed
- Fixed: gmcont.XXX.org_name in prefs.js will increase infinitely
- Fixed: exception will be thrown when a profile is shared among different OSs
- Fixed: Batch mode and backup function do not work with Portable Thunderbird
- Fixed: cannot save password if password is changed
