eliminate remaining global state
eliminate remaining global state

- use package.preload to consolidate existing files into bin/luke
  rather than cutting and pasting back and forth and hoping having
  everything in one file doesn't cause things to interfere
- set verbose and quiet functions in luke.cli, and then pass them
  through the callstack as an additional argument
- use std.normalize to consolidate shared environment

luaposix/luaposix