Previously Kuroko as ISC with an additional copy of the MIT
terms attributing components based on _Crafting Interpreters_.
The MIT license remains more well known, and in Berne signatory
states (anywhere I'd be okay taking a vacation), is legally
equivalent to the ISC license and other licenses I use in
other places. Before anyone else contributes to core, I am
relicensing fully under just the MIT for cleanliness.
