Update to 2.46

Fixes various security issues, see http://www.mozilla.org/security/known-vulnerabilities/seamonkey.html for more info.

No more includes Chatzilla and DOM Inspector in the package — install them yourself now (as usual other addons) from https://addons.mozilla.org

To play media in proprietary formats you need installed ffmpeg-libs version 2.6 or later (third party package, not provided due to legal reasons). Find it yourself (make sure such an use is allowed in your jurisdiction)