leeduan/chatroom — pull request #1 by leeduan (2014-04-24 04:49:21+00:00)
Title: Feature/usernames list

## UI
- tabs toggle between `Users` and `Rooms`
- renders list of users in current room or rooms available
- rerenders users list when user joins, leaves or disconnects

## Messaging
- displays system message to room when user joins room
- displays system message to room when user leaves room
- displays system message to room when user disconnects