Add RSpec gem
Move Crawler class into separate file
Create Scraper module
Replace scrape_page! with Scraper module
Use real HTML document in spec
Use constants instead of instance vars
Add scraper test
Fix SKU, stock and price values. Update tests
Merge branch 'refactor_crawler' of github.com:lime-green/uw_books into refactor_crawler
Merge pull request #1 from lime-green/refactor_crawler

Refactor crawler