utils.sleep -> utils.sleepMs

multiply one by a thousand
fix --long-version crash
Remove --built-by flag

I don't believe we use it; its intended use was replaced by putting the
BUILT_BY value into .build/buildinfo.json files.
some error-checking for option definitions

short options must be short, and you can't use names that mean something
already
Remove run-command (and "raw" commands)

We never really used the one tool that was built on top of
run-command. And the implementation of "raw" commands was probably
broken by some part of the "remove optimist" refactoring.