Matt 2.1

Welcome to the new release of Matt, which includes several code enhancements including fewer memory leaks, a cleaner environment, and a less restrictive parent set. Several key components have been rewritten from the ground up, and new features have been added, including the ability to process the A_COHOL environment variable without causing an illegal error. We promise this new version is faster and more productive than older versions, and urge you to upgrade immediately.