cloned from BookPacker repo, add root route to books index

Hello, 

Here is my solution to the book_packer challenge. 

I used ruby and rails to implement a fully functioning web application using a rake task to pull the data from the HTML files using the Nokogiri ruby gem, and regular expressions to parse out specific data to save to the database. 

I included the specified JSON output in the format requested. 
I included the EXTENSIONS.txt file in the public folder this file also includes my own comments about my solution. 
Please also take a look at my repo https://github.com/veleary/BookPacker for the full commit list to better see how I developed the solution. 

Let me know if you have any questions and I had a lot of fun with this project. 
Thanks!