Added logging to simple client.

import ssl

import select

import socket

import logging

from sjrpc.core import RpcConnection, ConnectionManager

class SimpleRpcClient(ConnectionManager):

            try:

                self._connection.receive()

            except socket.error as err:

                logging.error('Socket error while receiving from the client '

                              'fd/%s: %s' % (fd, err))

                self.shutdown()

        if event & select.EPOLLOUT:

            try:

                self._connection.send()

            except socket.error as err:

                logging.error('Socket error while sending to the client '

                              'fd/%s: %s' % (fd, err))

                self.shutdown()

        if event & select.EPOLLHUP:

            logging.error('Socket HUP fd/%s: %s' % (fd, err))

            self.shutdown()                                                      #TODO

    def all_connections(self):