conf: new Web>ExternalWebroot key to load from /client/ directory

Config.go

@@ -12,6 +12,8 @@ type Config struct {
 		BindTo string `json:"bind_to"`
 		Extern string `json:"extern"`
 		Title  string `json:"title"`
+
+		ExternalWebroot bool `json:"external_webroot,omitempty"`
 	}
 
 	Hub struct {

main.go

@@ -229,7 +229,11 @@ func (this *App) RunServer() {
 	http.HandleFunc("/conf", this.ConfigRequestHandler)
 
 	// Other files: asset handler
-	http.HandleFunc("/", this.StaticRequestHandler)
+	if this.cfg.Web.ExternalWebroot {
+		http.Handle("/", http.FileServer(http.Dir("client")))
+	} else {
+		http.HandleFunc("/", this.StaticRequestHandler)
+	}
 
 	// Listen and serve
 	bindAddr := fmt.Sprintf("%s:%d", this.cfg.Web.BindTo, this.cfg.Web.Port)