Added find by product id endpoint to the SDK
Added CLI
Fixed minor issues
Return skus in the same order they were sent to the API when finding a product by id
Fixed broken integration test since 3d30f8a58f8e2cfb03628f03941fd6d3b262a3f0
Merge pull request #2 from gsegura/gregorio

fix issues in the SDK with filterQuery separator. It should be '|' inste...
Fixed broken unit tests
Added available date property to sku class
 Added is oem property to sku class
Removed JsonProperty annotation from isOem attribute
Prevent NPE when reading search response values. Fixed bug where time would appear out of metadata in API responses
Change format of the Brand Categories response. The json returns now only one category instead of a list of categories
Add some methods to the ProductAPI to query category, brand category and top categories