Fix references in gemfile, always list gemspec, then Gemfile, never both

Bad:
![screen shot 2014-05-22 at 5 17 38 pm](https://cloud.githubusercontent.com/assets/19973/3050860/b8a1648a-e181-11e3-8711-aa3c759bd8e3.png)

Listing 'gemspec' in gemfile, means it will load in the references, listing in the same references means duplication and bad times.