Readme: add info about socket.io 0.7
Readme: add info about socket.io 0.7

murz/go-socket.io,madari/go-socket.io,jacobxk/go-socket.io,madari/go-socket.io,davies/go-socket.io,jmptrader/go-socket.io-1,jacobxk/go-socket.io,madari/go-socket.io,jmptrader/go-socket.io-1