refactor: code improvements without affecting logic, part 4.

[marcosmarcolin]

Hello,

I'm proposing some improvements in the quality of the code, as we don't have a test suite at the moment, I'm testing it on a real application and it's working correctly.

@walkor The engine you transcribed the code from https://github.com/socketio/engine.io/tree/2.1.x, right?

Did you base the other parts on any other socket.io server development or did you develop them yourself?

I ask this because I'm interested in trying to make the package comply with version 3 of socket.io first.

Thanks.

[walkor]

Yes, I transcribed the code directly from https://github.com/socketio/engine.io and https://github.com/socketio/socket.io, but I'm not sure about the specific version numbers. It would be great if you could implement version 3 of socket.io.

[walkor]

I have added you to the project, and of course, you can also create a separate project. I will include a link to your project in this one.

[marcosmarcolin]

Hello,

Thank you very much for your trust.

I'm going to dedicate some time to this, as much as possible I hope to help make it compatible with newer versions.