Created migration and model for Listing(s)
loading results from cimls.com's Chicago listings

added Nokogiri-related gems and RSpec gems to Gemfile

added :uri and :listing_type fields as attr_accessible in the Listing model

created a LoadListing class with rake methods to scrape the site

added a uri column to listings table

added a listings type to listings table

added the listings table to the schema

added a LoadListings rake file

added a test file for LoadListings model

added a LoadListing RSpec folder

added a spec helper file
fixed merge conflicts
Merge pull request #12 from sgray11/Retail_Business

added retail listings