Update ws to v0.8 to not have build errros on iojs-v3.
Update ws to v0.8 to not have build errros on iojs-v3.

jacobbubu/rn-websocket-stream,maxogden/websocket-stream,deanlandolt/websocket-stream,jnordberg/websocket-stream,maxogden/websocket-stream,matthewbauer/websocket-stream