Implements OAuth Sign In newWindow and sameWindow modes

[roterski]

Hey @neroniaky,

I've implemented OAuth Sign In flow with devise_token_auth supporting two modes: 'sameWindow' and 'newWindow'. I based my code on the ng-token-auth implementation.

You can see it working in action:
deployed here http://ng2auth-router-starter.netlify.com/
front-end code: https://github.com/piotrkaczmarek/ng2AuthRouterStarter
server code: https://github.com/piotrkaczmarek/ng2ars-api

In few days, I will write it up and add a section to the readme.

For now, I would be glad if you reviewed my code. Happy to hear your feedback!

[neroniaky]

@piotrkaczmarek thanks a lot! I was hoping to see your modifications as a PR, because I couldn't get it to work myself. I gonna take a look at it as soon as possible.
With 0.2.0 I integrated a "quickstart" GUI (not yet in the readme). Maybe you can take a look at it too.

[neroniaky]

@piotrkaczmarek thank you a lot! Mind if I put your name under the contributors section of the README?

[roterski]

@neroniaky that would be great! Thanks!