add message when web ui is loaded

a lack of output after "Loading routes" was a little confusing.

main.go

@@ -602,6 +602,11 @@ func start(asDaemon, firstCall bool) {
 				app.err.Printf("Failure serving: %s", err)
 			}
 		}
+		if firstRun {
+			app.info.Printf("Loaded, visit %s to start.", address)
+		} else {
+			app.info.Printf("Loaded @ %s", address)
+		}
 	}()
 	app.quit = make(chan os.Signal)
 	signal.Notify(app.quit, os.Interrupt)