post_request and patch_request are appending params to the url instead of the body

[williamkennedy]

Currently, each post and patch request does the following:

    def post_request(path, params)
      client.connection.post(path) do |req|
        req.params = params
        req.headers['Content-Type'] = 'application/json'
      end
    end

    def patch_request(path, params)
      client.connection.patch(path) do |req|
        req.params = params
        req.headers['Content-Type'] = 'application/json'
        req.headers['Accept'] = 'application/json'
      end

However, req.params should actually be req.body