fix bug varint decode

fix bug varint decode

Merge branch 'master' of github.com:alberliu/gn

# Conflicts:

#	README.md
#	codec.go
#	conn.go
#	server.go
#	test/client/main.go
#	test/server/main.go

commit

commit

commit

commit

Merge branch 'master' of github.com:alberliu/gn

� Conflicts:
�	conn.go
�	epoll_linux.go
�	os_net.go
�	server.go

commit