message: addition to issue65
diff: package org.c4sg.service.impl;
  +import java.util.List;
  +import java.util.stream.Collectors;
  +
  import org.c4sg.constant.UserDisplay;
  import org.c4sg.constant.UserRole;
  import org.c4sg.constant.UserStatus;
  import org.c4sg.dao.UserDao;
  import org.c4sg.dto.UserDto;
  -import org.c4sg.entity.Project;
  import org.c4sg.entity.User;
  import org.c4sg.mapper.UserMapper;
  import org.c4sg.service.UserService;
  import org.springframework.beans.factory.annotation.Autowired;
  import org.springframework.stereotype.Service;
  -import java.util.List;
  -import java.util.stream.Collectors;
  -
  @Service
  public class UserServiceImpl implements UserService{
  @Autowired
  