use the same connection structure for both client and server-side connections interfaces, the 'Connection' interface could be changed to 'ServerConn' but this would produce breaking naming change to the iris users, so keep it as it's.

Former-commit-id: 3440871b368709e33d2d2a5080c66f7ad9338970

_examples/websocket/go-client/server/main.go

@@ -11,8 +11,6 @@ import (
 func main() {
 	app := iris.New()
 	ws := websocket.New(websocket.Config{})
-	app.Get("/socket", ws.Handler())
-
 	ws.OnConnection(func(c websocket.Connection) {
 		go func() {
 			<-time.After(20 * time.Second)
@@ -28,5 +26,7 @@ func main() {
 		})
 	})
 
+	app.Get("/socket", ws.Handler())
+
 	app.Run(iris.Addr(":8080"))
 }