Create a nursery project?

[lloydmeta]

It might be nice with the next minor version to start a "nursery" project to hold "cutting-edge" or trial concepts.

We could put things like Transmogrifier and PathTraverser in there, basically stuff that hold promise, but have a few known edge cases or are waiting for more compiler support to become really smooth experiences.

Note, I don't think this module should be used for holding things that require nightly ...