Log Message:
Update thunderbrd and thunderbird-gtk1 to 2.0.0.4.
(2.0.0.1-2.0.0.3 skipped to keep the version on par with Firefox?)

Security fixes in this version:

MFSA 2007-15 Security Vulnerability in APOP Authentication
MFSA 2007-12 Crashes with evidence of memory corruption

For more info, see http://www.mozilla.com/en-US/thunderbird/2.0.0.4/releasenotes/