[Spambayes] There Can Be Only One

[Tim Peters]

[Skip Montanaro]
> How about creating a baseline named "graham-rip" before ripping it
> out so software archaeologists can find it later?

I'm not sure what "creating a baseline" means.  I tagged the project with
Last-Graham before changing the world, though, so if that's what you mean,
it's done.

The world has also changed:

These options have vanished:

    hambias
    spambias
    min_spamprob
    max_spamprob
    unknown_word_spamprob
    use_robinson_combining
    use_robinson_probability
    use_robinson_ranking

[note that the other Graham "mincount" mystery knob vanished a long
 time ago, and max_discriminators pretty much has the same meaning
 it had before]

These options have changed default value:

    robinson_probability_a: 0.225 (was 1.0)
    robinson_minimum_prob_strength: 0.1 (was 0.0)
    max_discriminators: 150 (was 16)
    spam_cutoff: 0.570 (was 0.90) # THIS IS CORPUS-DEPENDENT!

The GrahamBayes class was renamed to Bayes.