Self-hosted!

[assumed skynet joke here]

A few days ago, after many weeks of frenetic work, the new self-hosted Irken compiled itself.  There's still a lot of work to do, but this major milestone has been reached.  The compiler passes the stage1==stage2 test, and I'm now concentrating on various features still missing compared to the python compiler.  Also, the edit-compile cycle is still pretty slow, because both the compiler and gcc are slower than need be.  Once I have these issues solved and some rudimentary error reporting (the current error reporting might be described as medieval) I'll make an official release.

I'm also thinking about how to best re-package the system, considering orphaning the python development branch, and starting a whole new repository for the self-hosted system.

In the meanwhile, if there's anyone out there that would just like to see it compile itself, I rolled a demo tarball up.  Enjoy, and feedback is much appreciated!