v0.1.0-beta1

Yay! This looks pretty much like what we want to release with. This is a pre-release for v0.1 that supports all the goodies: threads, forks, workers, and worker pools. Updated documentation and small tweaks may come between this and the stable v0.1 release.

This is the first pinpointed version in the package -- use this version explicitly if you are using the library as-is. (Or wait a few days for stable v0.1.)