Modification

- Add configurator for Party
- Modification for CORS middleware example

Former-commit-id: f01c01d4eac41666a92890461851909a6ade018b

_examples/experimental-handlers/cors/simple/main.go

@@ -13,14 +13,14 @@ import (
 func main() {
 
 	app := iris.New()
-	crs := cors.New(cors.Options{
+	crs := cors.NewPartyMiddleware(cors.Options{
 		AllowedOrigins:   []string{"*"}, // allows everything, use that to change the hosts.
 		AllowedMethods:   router.AllMethods[:],
 		AllowCredentials: true,
 	})
 
 	v1 := app.Party("/api/v1")
-	v1.Use(crs)
+	v1.ConfigureParty(crs)
 	{
 		v1.Get("/home", func(ctx iris.Context) {
 			ctx.WriteString("Hello from /home")