b8 0.6.1

I just uploaded the new release 0.6.1 of the PHP spam filter b8.

From the ChangeLog:

• Fixed the theoretical possibility for an SQL injection. Thanks to Dirk Stolle for the bug report!
• Added a backend for PostgreSQL, written by Tom Regner
• Added a MySQL backend using the new mysqli_* functions instead of the legacy mysql_* ones. Thanks to Lorenzo Masetti for the initial port!

Everybody is encouraged to use the new version. Nothing in the configuration or database has been changed, so the new version can be used as a drop-in replacement.