fixed the libeventpaxos socket free, proxy <-> server, proxy <-> client.
fixed the libeventpaxos socket free, proxy <-> server, proxy <-> client.

hemingcui/xtern_with_paxos,hemingcui/xtern_with_paxos,hemingcui/xtern_with_paxos,hemingcui/xtern_with_paxos,hemingcui/xtern_with_paxos