simple chat server

Learn from here.
Run go build -o server server.go agent.go && ./server to start a server

To start a client, you can either run nc 127.0.0.1 8888

• Type me to check address and name
• Type who to check all live users
• Type rename|<new name> to change user name
• Type to|<remote name>|<message> to chat to single user
• Type <message> to broadcast

Or you can run go build client.go && ./client with better UI

• The message from server is green