Selfhosted - "cache" and "rt" endpoints aren't implemented

[VendettaMike]

We have a self-hosted version installed and looking at ways to implement real-time collaboration. It appears that the /cache and /rt endpoints available in the online version don't exist in the released code or WAR file. I'm pretty sure the /cache is used to communicate with Pusher but not sure of the /rt portion of it.

I see there are various collaboration files in the code (P2PCollab.js, simplepeer.js, pusher.js) and it would be great to make RT work. Is there any method of creating RT with our self hosted system without the need for external services such as pusher? I understand a websocket server would be needed but I don't see any details anywhere on how to implement.