Remove google analytics, minor touch ups

• Removed google analytics as it wasn't very useful and taking up resources. Thanks @Johann-S
• Fixed a typo. Thanks @Glavin001
• Put jscs config into a file. Thanks @Johann-S
• Removed identity from permissions
• Minor code clean up

Switch token storage to Sync

• Token storage has switched to google's sync storage. This will persist across browsers on different devices / operating systems so you only need one token. If you have this disabled it will work the same way as it did before by reverting to local storage
• Add JSCS for consistency for any potential contributors

Fix issue with watchers count

GitHub's interface shows the subscribers_count from the API, where watchers count seems to match stars. The extension now matches the GitHub interface

Fix issue with mininfied css

Fixed deployment so css stays as .css rather than .min.css

Remove OAuth

The extension now uses GitHub's personal access tokens to avoid constantly being asked to sign in

Also cleaned up release process, so the extension is now minified

Restrict permissions

This release modifies the extensions permissions so it only will watch *.github.io

Initial beta test

Invitations only on chrome app store at this point