salt-bootstrap works on 13.10. Updated the readme to reflect that.
Merge pull request #272 from thedrow/patch-1

salt-bootstrap works on 13.10. Updated the readme to reflect that.
salt-bootstrap only runs with sudo. Changed README file to reflect that.
Merge pull request #273 from thedrow/patch-1

salt-bootstrap only runs with sudo. Changed README file to reflect that.
Add information that `sudo` is not necessary when running as `root`.