2014 lhd format

A quick pass at converting the scores xls file to csv (thanks to @blakeshall #6) and processing the latest csv format. 

This also includes the establishment number so we can uniquely id restaurants over time. 

Just in time for hack night :P Thoughts/improvements welcome!
would prefer iterations more like

```ruby
(1..10).each do |i|
   headers.push(s.cell(1,i).to_sym)
end
```

but whatever