addons an bug fix

Update log:
1 add some note in Chinese
2 support redis pipeline
3 fix a fatal bug

bug info:
	presentation：too many CLOSE_WAIT TCP connections
	cause: socket in client doesn't close when pool collects connection object.
	classes related: com.officedrop.redis.failover.Client

	code related:
		private void quitMaster() {
		if (this.master != null && master.isConnected()) {
		    try {
			this.master.quit();
		    } catch (Exception e) {
			log.error("Failed while closing the connection to master", e);
		    }
		    try{
			this.master.disconnect();
		    } catch (Exception e) {
			log.error("Failed while closing the connection to master", e);
		    }
		}
	    }

		private void quitSlaves() {
			if (this.slaves != null) {
			    for (JedisClient slave : this.slaves) {
				if(!slave.isConnected()) continue;
				try {
				    slave.quit();
				} catch (Exception e) {
				    log.error("Failed while closing the connection to the slave", e);
				}
				try{
					slave.disconnect();
				} catch (Exception e) {
				    log.error("Failed while closing the connection to the slave", e);
				}
			    }
			}
		    }