integrate chat with Server Sent Events
refactor char JS & improve design
add momentjs lib
refactor angular chat
improve routes
save chat messages to mongo
allow to get all messages for a room
change routes for chat : put them after /api
load old message in chat when change room, sort messages and don't add duplicates to chat
improve chat controller
rename packages
Merge pull request #3 from loicknuchel/realtime-chat

Add realtime chat