Sat Dec 14 11:16:25 EST 2013

Staapl next

Time to simplify.  I'm not happy with the the state of USB.  I don't
know how to debug it.  I'm a bit stuck.  Still, I'd like to distill
some core of Staapl to make it to the next version.

- Circular Forth: not possible to unroll into Racket-like module

- Forth prefix parsers are very messy.