Flags for listen and metrics address; fix in newRedirectPasteSuccess.txt.tmpl

Fixes #9

router.go

@@ -28,7 +28,7 @@ func recoveryMiddleware(next http.Handler) http.Handler {
 	})
 }
 
-func StartMainServer() {
+func StartMainServer(addr string) {
 	// Initialize Gorilla router
 	router := mux.NewRouter()
 	router.Use(recoveryMiddleware)
@@ -42,7 +42,7 @@ func StartMainServer() {
 
 	srv := &http.Server{
 		Handler:      router,
-		Addr:         "127.0.0.1:8000",
+		Addr:         addr,
 		WriteTimeout: 15 * time.Second,
 		ReadTimeout:  15 * time.Second,
 	}