title: Electron app name doesn't change
body: <p>i'm packaging my application using electron-packager but isn't changing its name, and still display "Electron".</p>
  
  <p>it's supposed to use the <code>productName</code> in my <code>package.json</code> but it doesn't change.</p>
  
  <p>even if i made an installer, the name of the app installed, shortcut and process still is <code>Electron</code> </p>
  
  <p>i've read that maybe the problem is <code>electron-prebuilt</code> but i didn't have it as a dependency on my project.</p>
  
  <p>Any idea what is wrong?</p>
  
  <p><strong>Edit:</strong></p>
  
  <p>reading more on the documentation of <code>electron-packager</code> there's an options especially to windows. but when i use them throws me an error:</p>
  
  <pre><code>Fatal error: Unable to commit changes
  undefined
  </code></pre>
  
  <p>the first time i used them was "working" good packaging my app, but still displaying wrong the appname</p>
  
  <pre><code>electron-packager ./ --platform=win32 --arch=ia32 --overwrite=true --appname="TierraDesktop" --version-string.ProductName="TierraDesktop" --version-string=InternalName="TierraDesktop" --version-string.CompanyName="Cosmica" --version-string.FileDescription="Sistema de gestion comercial" --version-string.OriginalFilename="TierraDesktop"
  </code></pre>
  
  <p>before was working with <code>--version-string.ProductName</code> but now even with it still throws that error.</p>
  
  <p>here i'll leave you my <code>packager.json</code> that's on the root of my project</p>
  
  <pre><code>{
  "name": "TierraDesktop",
  "productName": "TierraDesktop",
  "version": "2.0.5",
  "description": "Aplicacion de escritorio tierra de colores",
  "main": "main.js",
  "scripts": {
      "start": "electron main.js"
  },
  "repository": {
      "type": "git",
      "url": "git+https://github.com/xxxx/xxxxx.git"
  },
  "author": "xxxxx",
  "devDependencies": {
      "debug-menu": "^0.4.0",
      "electron-winstaller": "^2.3.3"
  },
  "dependencies": {
      "electron-json-storage": "^2.0.0"
  }
  }
  </code></pre>
  
  <p><a href="https://i.stack.imgur.com/H414o.jpg" rel="noreferrer"><img src="https://i.stack.imgur.com/H414o.jpg" alt="Executable"></a></p>
  
  <p><a href="https://i.stack.imgur.com/iMeey.jpg" rel="noreferrer"><img src="https://i.stack.imgur.com/iMeey.jpg" alt="Process name"></a></p>
  
  <p><a href="https://i.stack.imgur.com/NCOEb.jpg" rel="noreferrer"><img src="https://i.stack.imgur.com/NCOEb.jpg" alt="Application name"></a></p>