Update vendor

vendor/github.com/labstack/echo/cookbook/http2/server.go

@@ -0,0 +1,42 @@
+package main
+
+import (
+	"fmt"
+	"net/http"
+	"time"
+
+	"github.com/labstack/echo"
+)
+
+func request(c echo.Context) error {
+	req := c.Request()
+	format := "<pre><strong>Request Information</strong>\n\n<code>Protocol: %s\nHost: %s\nRemote Address: %s\nMethod: %s\nPath: %s\n</code></pre>"
+	return c.HTML(http.StatusOK, fmt.Sprintf(format, req.Proto, req.Host, req.RemoteAddr, req.Method, req.URL.Path))
+}
+
+func stream(c echo.Context) error {
+	res := c.Response()
+	gone := res.CloseNotify()
+	res.Header().Set(echo.HeaderContentType, echo.MIMETextHTMLCharsetUTF8)
+	res.WriteHeader(http.StatusOK)
+	ticker := time.NewTicker(1 * time.Second)
+	defer ticker.Stop()
+
+	fmt.Fprint(res, "<pre><strong>Clock Stream</strong>\n\n<code>")
+	for {
+		fmt.Fprintf(res, "%v\n", time.Now())
+		res.Flush()
+		select {
+		case <-ticker.C:
+		case <-gone:
+			break
+		}
+	}
+}
+
+func main() {
+	e := echo.New()
+	e.GET("/request", request)
+	e.GET("/stream", stream)
+	e.Logger.Fatal(e.StartTLS(":1323", "cert.pem", "key.pem"))
+}