Fix for failed tests

src/main.js

@@ -8,6 +8,7 @@ const Tray = electron.Tray;
 const ipc = electron.ipcMain;
 const fs = require('fs');
 
+var settings = require('./common/settings');
 var appMenu = require('./menus/app');
 
 var argv = require('yargs').argv;
@@ -27,6 +28,18 @@ else {
   global['config-file'] = app.getPath('userData') + '/config.json'
 }
 
+try {
+  var configFile = global['config-file'];
+  var config = settings.readFileSync(configFile);
+  if (config.version != settings.version) {
+    config = settings.upgrade(config);
+    settings.writeFileSync(configFile, config);
+  }
+}
+catch (e) {
+  console.log('Failed to read or upgrade config.json');
+}
+
 // 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.
 var mainWindow = null;