borisyankov/DefinitelyTyped — pull request #1647 by shidasan (2014-01-29 19:19:36+00:00)
Title: socket.io: Update missing API

As shown in https://github.com/LearnBoost/socket.io/wiki/Rooms, the opposite method of 'join' is 'leave', but now it has been mixed up with 'unjoin'.