+ main menu support

+ about info

main.js

@@ -1,5 +1,5 @@
 // Modules to control application life and create native browser window
-const {app, ipcMain, BrowserWindow} = require('electron');
+const {app, Menu, ipcMain, BrowserWindow} = require('electron');
 const singleInstance = require('single-instance');
 const path = require('path');
 const fs = require('fs');
@@ -9,7 +9,7 @@ var locker = new singleInstance('Ether1DesktopWallet');
 locker.lock().then(function() {
   // Keep a global reference of the window object, if you don't, the window will
   // be closed automatically when the JavaScript object is garbage collected.
-  let mainWindow
+  mainWindow = null;
 
   function createWindow () {
     // Create the browser window.
@@ -35,7 +35,9 @@ locker.lock().then(function() {
       // in an array if your app supports multi windows, this is the time
       // when you should delete the corresponding element.    
       mainWindow = null
-    })
+    });
+
+    require('./modules/menu.js');
   }
 
   // This method will be called when Electron has finished
@@ -59,7 +61,7 @@ locker.lock().then(function() {
     if (mainWindow === null) {
       createWindow()
     }
-  })
+  })  
 
   // In this file you can include the rest of your app's specific main process
   // code. You can also put them in separate files and require them here.