Integrate let's chat with django

I have recently checked out http://sdelements.github.io/lets-chat/, a really cool group chat application built on NodeJS and MongoDB. I am working on a project in Django/Postgres and need a quick and neat group chat solution. How do I integrate let's chat into my application. The queries I have,

1. Ideally the authentication should happen in django and the creation of users/chat rooms too.
2. How to handle communications between Node server and Django server.
3. In the time of hosting, what should i be worried about?
4. What are the other problems I can run into?
5. Is there any other alternative to let's chat with MIT license and similar features?

I am very sorry for being naive in question. I am just a beginner. Please help me out.

via Abhishek Menon