Merge pull request #28 from BenP1236691/master

Update stackrabbit.lua

Don't prune the NB search in rate-move queries too early

Fix README.md

Update README.md

Selectively disallow tuck setups based on dig mode

Merge branch 'master' of https://github.com/GregoryCannon/StackRabbit

Don't allow tuck setups while digging

Merge pull request #24 from fractal161/vits

tweak weight

mark all vits minos as tuck setups

make vits check more explicit

add vits

Fix bug where playouts used the wrong piece sequences

Implement base-7 ranks in CPP, in place of surface heuristic