Releasing ShopifyAPI

1. Check the Semantic Versioning page for info on how to version the new release: http://semver.org
2. Update the version of ShopifyAPI in shopify_api.gemspec
3. Add a CHANGELOG entry for the new release with the date (also include the updated date in shopify_api.gemspec)
4. Commit the changes with a commit message like "Packaging for release X.Y.Z"
5. Tag the release with the version (Leave REV blank for HEAD or provide a SHA)
  $ git tag vX.Y.Z REV
6. Push out the changes
  $ git push
7. Push out the tags
  $ git push --tags
8. Build the new .gem from the updated .gemspec
  $ gem build shopify_api.gemspec
9. Publish the Gem to gemcutter
  $ gem push shopify_api-X.Y.Z.gem