Electron 1.4.0

[feross]

The changes that are relevant to us are:

• Upgrade to Chrome 53.
• Upgrade to Node 6.5.0.
• Add support for titleBarStyle: 'hidden-inset' on OS X 10.9.

The last item should improve our UI on OS X 10.9 since we use 'hidden-inset'. I don't know what it looked like before.

[feross]

Thanks @Flet!

[dcposch]

I think this broke the console in a weird way, but only when running from Spectron.

1. Run the integration tests, but add a wait(100e3) somewhere to give yourself time
2. Open DevTools. Go to the Console
3. Notice the Console is empty. If you type anything and hit enter, it just disappears. The console is broken.
4. npm install electron@1.3.5
5. Repeat steps 1-3. The console works this time.

???

[feross]

@dcposch Can you open an issue on the Electron repo?

This doesn't actually seem to affect the tests running correctly, right? I just ran through them on Electron 1.4.0 and it worked fine.

Up to you if you think we should revert.