release v0.8.1
socket close fd when auth failed
accept may not start fd, so it can't close at last
fprintf need cr
fix issue #200
dispatch read before write, and try to dispath both
support user defined send object
use fork to dispatch more socket message
add snax.self and snax.exit
remove snax queue mode
bugfix: init should be out
use snax.newservice would be better
Merge pull request #203 from cloudwu/dev

Ready for 0.9.0