rules project -- a new way to do fast-turnaround mass-checks

[Justin Mason]

Hey folks --

I've come up with an idea to use BuildBot for the fast-turnaround
mass-checking, instead of a mailing list.  The writeup is here:

  http://wiki.apache.org/spamassassin/RulesProjBuildBot

Please let me know what you think!

--j.