为消费的go进程信息注册到zookeeper，检测消费进程是否当前处于存活状态
	modified:   ../config/zk_manager.go
	modified:   ../config/zk_manager_test.go
	modified:   ../consumer/flume_node_watcher.go
	renamed:    ../consumer/log_sink.go -> ../consumer/log_source.go
	renamed:    ../consumer/log_sink_manager.go -> ../consumer/log_source_manager.go
	renamed:    ../consumer/log_sink_test.go -> ../consumer/log_source_test.go
	modified:   flume-log.go