configure russian

[David Relson]

Evgeny,

I'm thinking that russian support involves 2 options in configure:

   --enable-russian
   --with-default-charset

The first one defines symbol CP866 so that the russian character sets
are available.

The second one allows specification of a default character set, which
will allow naming of any charset supported by bogofilter.  

Having 2 options makes it clear that 2 separate capabilities are
involved.

Regards,

David