grape_url
http://www.open-open.com/lib/view/open1356229655416.html
https://github.com/ruby-china/ruby-china/blob/master/app/grape/api.rb#L7
http://intridea.github.io/grape/docs/index.html
grape_swagger_url
http://dev.af83.com/2013/11/12/how-to-document-your-grape-api-using-swagger-ui.html
jquery链接
http://api.jquery.com/