dramatis

 pingpong: working and complete

 auction: working but doesn't have the timeout, end of auction stuff

 bank: incomplete

 telephone: versions first through sixth are complete and working

            seventh is incomplete/not-working

 im: single/fox: working

     single/wx: working but incomplete

     distributed: very incomplete

 fib: a fib computation after Doug Lea's Fork/Join framework The goal

      of this is to show speedup on jruby, which has real

      concurrency. Right now, this is flakey. First, it doesn't bound

      concurrency (Doug's whole point) which gets out of control in the

      original version. The conservative version does weird things for

      me on linux. But so does the pure thread version (though the

      dramatis version is weirder than the thread version).