* Include query parameters in the generated Postman collection.
* Style fixes
* Also include headers in the Postman collection.
* Also include JSON content type headers for good measure.
* Update the tests.
* Add a test to validate the body parameters in a Postman collection.
* Remove the "Content-Type" header again, as we are actually sending content as form data.
* Add a query test and make the tests more deterministic.
* PR fixes.