Log Message:
Update to version 2.60 (fixes PR pkg/23318):

Summary of changes since 2.5x
-----------------------------------

- spamd supports UNIX-domain sockets
- SSL support for spamc/spamd now usable
- improved Bayes text analysis
- improved expiration of Bayes-DB
- better detection of 'invisible text' and other obfuscation techniques
  in HTML
- new RBL (eg SORBS, SpamCop, Osirusoft dropped)
- better handling of RBL timeouts
- support for Razor V1 dropped
- more flexible header and report rewriting
- Perl taint mode enabled by default
- bug fixes
- new rules