Fix resourcePath to allow swagger-codegen tools to work.

According to the swagger spec (https://github.com/wordnik/swagger-spec/blob/master/versions/1.2.md)
the resourcePath should be:

The relative path to the resource, from the basePath, which this API Specification describes. The value MUST precede with a forward slash ("/").
Merge pull request #14 from jmelching/resource-path

Fix resourcePath to allow swagger-codegen tools to work. Will change the value to `/`. Thanks!!!