resolves #58: 'connecting' overlay not removed

Now that the 'status' message can be used also as an update
(since 2a14567), extra care has to be taken with the popup
reconnecting overlay

src/resources/js/app.js

@@ -44,6 +44,7 @@ const WebsocketHandler = function() {
         if (!this.comp)
           return console.error("Page component was undefined");
         else {
+          this.comp.$root.connected = true;
           this.comp.$root.showNotify(msg.type, msg.data);
           if(typeof this.comp[msg.type] === 'function')
             this.comp[msg.type](msg.data);