Ignore .env.development file
Update environment variable name from TAG to ASSOCIATE_TAG as Amazon expects a variable called associate_tag
 Load Product object from Amazon using ProductLookup.loadFromASIN(asin) method

* Add Response helper to parse XML responses into hashes
* Create ProductLookup module to load products from Amazon by ASIN number
* Add vacuum gem to make calls to Amazon API
* Add multi_xml gem to parse xml
Load needed product attributes and similar products from Amazon API

* Add get_attribute_hash method in ProductLookup module, which returns relevant attributes from Amazon API query
* Add get_similar_products method in ProductLookup module, which returns array of similar product ASINs given by Amazon API
Load needed product attributes and similar products from Amazon API

* Add get_attribute_hash method in ProductLookup module, which returns relevant attributes from Amazon API query
* Add get_similar_products method in ProductLookup module, which returns array of similar product ASINs given by Amazon API
*load_from_asin method now returns a hash, consisting of a products_attributes hash, and the similar products ASIN array
Merge branch 'product_lookup' of https://github.com/ShopIt2Me/sitm into product_lookup
Add query for medium and small image sizes
Add get_ten_asins method in ProductLookup module. Returns randomly generated array of ten ASINs.
Add table migration

* add column for small image URL
* add column for medium image URL
* renamed image column to large_image
* changed price column data type to string from integer
Merge pull request #7 from ShopIt2Me/product_lookup

Product lookup