Finish Amazon API.
Refactor API to work with multiple stores and return normalized objects. Promisify Amazon. Update gitignore.
Merge pull request #15 from jDeppen/amazon

Refactor API to work with multiple stores and return normalized objects. Promisify Amazon. Update gitignore.
Add testing module dependencies to package.json.
Add additional test dependencies and karma.conf file.
Update testing dependencies and configuation.
Update routing specification.
Add tests for UISpecs.