bogofilter 0.9.1 released

Bogofilter version 0.9.1 has been released.  The default classification 
method has been changed from the Graham algorithm to the Robinson algorithm 
for improved reliability and accuracy.  The documentation has been expanded 
and covers the many new command line and config file options.  The changes 
since 0.8.0 are printed below.


	* New script contrib/bogopass allows processing of base64
	  attachments.  This is a temporary solution until base64
	  code can be built into bogofilter.
	* New file README.Robinson describes the tunable parameters
	  for the Robinson algorithm and what to do for best performance.
	* Changed the default behavior to use the Robinson algorithm.
	* Corrected incorrect sort order when printing statistics.
	* Added support for Fisher's method of combining probabilities,
	  as optimized for this purpose by Rob W. W. Hooft, to the
	  "Robinson" algorithm.
	* The new file METHODS describes the Graham, Robinson, and Fisher
	  methods that bogofilter supports for computing spamicity.
	* New file README.dcdflib gives some info on the dcdflib free
	  library of routines for cumulative distribution functions.
	* A new '-f' option tells bogofilter to use Fisher's method.
	* A new '-c' option in bogofilter allows specification of the
	  configuration file to read.
	* A new '-C' option tells bogofilter not to read any config file.
	* The syslog facility in '-l' mode has changed from "daemon" to "mail",
	  so your logs may now be in /var/log/maillog or /var/log/mail rather
	  than /var/log/messages. Check your /etc/syslog.conf.
	* The testing framework now works on Solaris.
	Internal Changes:
	* Fixed several portability problems uncovered by the new
	  regression tests.
	* Added three more regression tests designed to confirm that
	  bogofilter's results are matching saved reference results.
	* Implemented an object oriented API for using computational methods.
	* Split the main module into a registration module and three algorithm
	  modules - for the fisher, graham and robinson methods.
	* Registering big mbox files is much faster now, at the expense of some
	  memory.


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