Replace godep with dep

vendor/github.com/go-openapi/spec/response.go

@@ -17,6 +17,7 @@ package spec
 import (
 	"encoding/json"
 
+	"github.com/go-openapi/jsonpointer"
 	"github.com/go-openapi/swag"
 )
 
@@ -34,6 +35,19 @@ type ResponseProps struct {
 type Response struct {
 	Refable
 	ResponseProps
+	VendorExtensible
+}
+
+// JSONLookup look up a value by the json property name
+func (p Response) JSONLookup(token string) (interface{}, error) {
+	if ex, ok := p.Extensions[token]; ok {
+		return &ex, nil
+	}
+	if token == "$ref" {
+		return &p.Ref, nil
+	}
+	r, _, err := jsonpointer.GetForToken(p.ResponseProps, token)
+	return r, err
 }
 
 // UnmarshalJSON hydrates this items instance with the data from JSON
@@ -44,6 +58,9 @@ func (r *Response) UnmarshalJSON(data []byte) error {
 	if err := json.Unmarshal(data, &r.Refable); err != nil {
 		return err
 	}
+	if err := json.Unmarshal(data, &r.VendorExtensible); err != nil {
+		return err
+	}
 	return nil
 }
 
@@ -57,7 +74,11 @@ func (r Response) MarshalJSON() ([]byte, error) {
 	if err != nil {
 		return nil, err
 	}
-	return swag.ConcatJSON(b1, b2), nil
+	b3, err := json.Marshal(r.VendorExtensible)
+	if err != nil {
+		return nil, err
+	}
+	return swag.ConcatJSON(b1, b2, b3), nil
 }
 
 // NewResponse creates a new response instance