Bash weirdness

GNU bash, version 3.2.53(1)-release (x86_64-apple-darwin13)
Copyright (C) 2007 Free Software Foundation, Inc.
Fixes #9

I’m not sure what changed other than some variable quoting, but it
seems to work reliably for me now.
Fixes #1

Adds an `init` param that prompts for an admin password to initialize a
virgin install. Hard-codes `admin` as user name. Allows host name
parameter. This should default to `localhost` in the future. This
probably isn’t idempotent.