Revert "Merge branch 'master' of https://github.com/google/lisp-koans"

This reverts commit 303d5a2e8d678165d9d100ff8b13a8e9aee824dc, reversing
changes made to 05e4a36d5f8d1e44d2d196d49d49ffc56721e680.
convenience script

boo