Corrected typo in contentType declaration of api objects. (The contentType being used was "applicaton/json", while the correct JSON MIME type is "application/json" [http://www.ietf.org/rfc/rfc4627.txt section 6]).
Merge pull request #115 from matthewdickinson/correct_api_contenttype_type

Corrected typo in contentType declaration of api objects. (The contentTy...