Merge pull request #81 from Cabalist/req_fix

specifiying setuptools/wheel will cause deployment to fail in Heroku

{{cookiecutter.app_name}}/requirements/prod.txt

 # Everything needed in production
 
-setuptools==20.2.2
-wheel==0.29.0
-
 # Flask
 Flask==0.11.1
 MarkupSafe==0.23