stevegraham/slanger — pull request #124 by Juanmcuello (2013-12-04 00:41:18+00:00)
Title: Implement pusher_pong.

I have an Android application that connects to Slanger. The application sends a `ping` message to keep the connection alive. Slanger should response with a `pong` to these messages, otherwise the pusher client library closes the connection.