verbosity, install path, and path to self fixes #10
introduce an enter() function that's a wrapper around a call to update() and prompting for a key press if verbosity >= 0.
make "Few Questions as Possible" mode skip over places in the code where it was waiting for a keypress by using the new enter() function.
fixed a bug where it wasn't actually creating the install dir.  a logic test was backwards.  whoops.
tolerate /data/domains already existing.