Merging Victoria's branch with Master

I added command line options to create_data.rb and put a small description of how to call the script in README. 
Yeah, this whole thing is great. Thor looks super nice. This will let us get much fancier later on when we probably need to start doing some work with the cluster. The nice thing is we can keep it all in one cli tool and focus on implementation as opposed to building an ad-hoc set of scripts and argument parsers.