Swagger docs only show one parameter schema

[dparker2]

Summary

Since __apispec__["parameters"] is no longer used in request_schema, and __apispec__["schema"] is used for generating the swagger.json, the schema of only the first added parameter is shown in the swagger docs.

Example

https://repl.it/repls/UrbanMushyMp3

What Happened

As you can see in the output from the above link, the swagger_dict only contains the headers schema, even though both body and headers schemas were provided.

Expected

The parameters list would contain both the headers and body schemas.

[maximdanilchenko]

I will release this fix in nearby future.