[Mailman-Developers] posters variable

[Scott]

currently, in mailman when you have anyone listed in the posters
setting, there are no options to let people set whether the posters
should automatically include the digest and/or regular
subscribers. majordomo lets you do this (although with some awkward
syntax -- see mj's restrict_post).

perhaps we could add 2 more boolean variables like
posters_auto_include_digest_subscribers and
posters_auto_include_regular_subscribers to address this.  Even though
it's not really common, i don't believe it's that unusual for a list
to allow only its subscribers  plus a handful of other people to post.

scott