setup-project.py: every question - the yes, each install offer, the project name - is asked at the person's own terminal, read from the controlling terminal when stdin is the pipe the script arrived down, and a run with no terminal at all refuses naming that terminal as the way on and --yes only as the person's own answer, so the README's curl ... | bash -s -- asks in the person's terminal instead of refusing, and an assistant's shell is no longer sent to re-run with the flag its first rule forbids it (#476, #492) - #491