Cannot read property 'setBadge' of undefined - on Windows

[gfpacheco]

You're using the app.dock even though it's not supported on Windows.
I ran the nativefier only for win32 platform and when the app regain focus it throws an error:

Uncaught Exception:
TypeError: Cannot read property 'setBadge' of undefined
    at BrowserWindow.<anonymous>
(...\resources\app\main.js:44:17)
    at emitOne (events.js:82:20)
    at BrowserWindow.emit (event.js:169:7)

I imagine a single if (process.platform === 'darwin') must solve the issue, just reporting.

BTW, great project!

[jiahaog]

#4 That makes sense, thanks!