Yet another fix to the mail gateway... ...messages got *all* files of an issue, not just the new ones. Thanks to Rafal Bisingier for reporting and proposing a fix. The regression test was updated. Fix version numbers in upgrade documentation, the file-unlink defect was in 1.4.17 not 1.4.16. Thanks to Rafal Bisingier.

announcement.html
customizing.html
developers.html
implementation.html
index.html
installation.html
user_guide.html
FAQ.html
security.html
features.html
upgrading.html
glossary.html
design.html
admin_guide.html
overview.html
mysql.html
postgresql.html
tracker_templates.html
whatsnew-0.7.html
whatsnew-0.8.html
*.ht